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  1. Article ; Online: Measurement of the Prompt D^{0} Nuclear Modification Factor in p-Pb Collisions at sqrt[s_{NN}]=8.16  TeV.

    Aaij, R / Abdelmotteleb, A S W / Abellan Beteta, C / Abudinén, F / Ackernley, T / Adeva, B / Adinolfi, M / Afsharnia, H / Agapopoulou, C / Aidala, C A / Aiola, S / Ajaltouni, Z / Akar, S / Akiba, K / Albrecht, J / Alessio, F / Alexander, M / Alfonso Albero, A / Aliouche, Z /
    Alvarez Cartelle, P / Amato, S / Amey, J L / Amhis, Y / An, L / Anderlini, L / Andersson, M / Andreianov, A / Andreotti, M / Andreou, D / Ao, D / Archilli, F / Artamonov, A / Artuso, M / Aslanides, E / Atzeni, M / Audurier, B / Bachmann, S / Bachmayer, M / Back, J J / Bailly-Reyre, A / Baladron Rodriguez, P / Balagura, V / Baldini, W / Baptista de Souza Leite, J / Barbetti, M / Barlow, R J / Barsuk, S / Barter, W / Bartolini, M / Baryshnikov, F / Basels, J M / Bassi, G / Batsukh, B / Battig, A / Bay, A / Beck, A / Becker, M / Bedeschi, F / Bediaga, I B / Beiter, A / Belavin, V / Belin, S / Bellee, V / Belous, K / Belov, I / Belyaev, I / Bencivenni, G / Ben-Haim, E / Berezhnoy, A / Bernet, R / Berninghoff, D / Bernstein, H C / Bertella, C / Bertolin, A / Betancourt, C / Betti, F / Bezshyiko, Ia / Bhasin, S / Bhom, J / Bian, L / Bieker, M S / Biesuz, N V / Bifani, S / Billoir, P / Biolchini, A / Birch, M / Bishop, F C R / Bitadze, A / Bizzeti, A / Blago, M P / Blake, T / Blanc, F / Blusk, S / Bobulska, D / Boelhauve, J A / Boente Garcia, O / Boettcher, T / Boldyrev, A / Bondar, N / Borghi, S / Borsato, M / Borsuk, J T / Bouchiba, S A / Bowcock, T J V / Boyer, A / Bozzi, C / Bradley, M J / Braun, S / Brea Rodriguez, A / Brodzicka, J / Brossa Gonzalo, A / Brundu, D / Buonaura, A / Buonincontri, L / Burke, A T / Burr, C / Bursche, A / Butkevich, A / Butter, J S / Buytaert, J / Byczynski, W / Cadeddu, S / Cai, H / Calabrese, R / Calefice, L / Cali, S / Calladine, R / Calvi, M / Calvo Gomez, M / Camargo Magalhaes, P / Campana, P / Campora Perez, D H / Campoverde Quezada, A F / Capelli, S / Capriotti, L / Carbone, A / Carboni, G / Cardinale, R / Cardini, A / Carli, I / Carniti, P / Carus, L / Casais Vidal, A / Caspary, R / Casse, G / Cattaneo, M / Cavallero, G / Cavallini, V / Celani, S / Cerasoli, J / Cervenkov, D / Chadwick, A J / Chapman, M G / Charles, M / Charpentier, Ph / Chavez Barajas, C A / Chefdeville, M / Chen, C / Chen, S / Chernov, A / Chernyshenko, S / Chobanova, V / Cholak, S / Chrzaszcz, M / Chubykin, A / Chulikov, V / Ciambrone, P / Cicala, M F / Cid Vidal, X / Ciezarek, G / Ciullo, G / Clarke, P E L / Clemencic, M / Cliff, H V / Closier, J / Cobbledick, J L / Coco, V / Coelho, J A B / Cogan, J / Cogneras, E / Cojocariu, L / Collins, P / Colombo, T / Congedo, L / Contu, A / Cooke, N / Coombs, G / Corredoira, I / Corti, G / Couturier, B / Craik, D C / Crkovská, J / Cruz Torres, M / Currie, R / Da Silva, C L / Dadabaev, S / Dai, L / Dall'Occo, E / Dalseno, J / D'Ambrosio, C / Danilina, A / d'Argent, P / Davies, J E / Davis, A / De Aguiar Francisco, O / de Boer, J / De Bruyn, K / De Capua, S / De Cian, M / De Freitas Carneiro Da Graca, U / De Lucia, E / De Miranda, J M / De Paula, L / De Serio, M / De Simone, D / De Simone, P / De Vellis, F / de Vries, J A / Dean, C T / Debernardis, F / Decamp, D / Dedu, V / Del Buono, L / Delaney, B / Dembinski, H-P / Denysenko, V / Deschamps, O / Dettori, F / Dey, B / Di Cicco, A / Di Nezza, P / Didenko, S / Dieste Maronas, L / Ding, S / Dobishuk, V / Dolmatov, A / Dong, C / Donohoe, A M / Dordei, F / Dos Reis, A C / Douglas, L / Downes, A G / Dudek, M W / Dufour, L / Duk, V / Durante, P / Durham, J M / Dutta, D / Dziurda, A / Dzyuba, A / Easo, S / Egede, U / Egorychev, V / Eidelman, S / Eisenhardt, S / Ek-In, S / Eklund, L / Ely, S / Ene, A / Epple, E / Escher, S / Eschle, J / Esen, S / Evans, T / Falcao, L N / Fan, Y / Fang, B / Farry, S / Fazzini, D / Feo, M / Fernez, A D / Ferrari, F / Ferreira Lopes, L / Ferreira Rodrigues, F / Ferreres Sole, S / Ferrillo, M / Ferro-Luzzi, M / Filippov, S / Fini, R A / Fiorini, M / Firlej, M / Fischer, K M / Fitzgerald, D S / Fitzpatrick, C / Fiutowski, T / Fleuret, F / Fontana, M / Fontanelli, F / Forty, R / Foulds-Holt, D / Franco Lima, V / Franco Sevilla, M / Frank, M / Franzoso, E / Frau, G / Frei, C / Friday, D A / Fu, J / Fuehring, Q / Gabriel, E / Galati, G / Gallas Torreira, A / Galli, D / Gambetta, S / Gan, Y / Gandelman, M / Gandini, P / Gao, Y / Garau, M / Garcia Martin, L M / Garcia Moreno, P / García Pardiñas, J / Garcia Plana, B / Garcia Rosales, F A / Garrido, L / Gaspar, C / Geertsema, R E / Gerick, D / Gerken, L L / Gersabeck, E / Gersabeck, M / Gershon, T / Giambastiani, L / Gibson, V / Giemza, H K / Gilman, A L / Giovannetti, M / Gioventù, A / Gironella Gironell, P / Giugliano, C / Giza, M A / Gizdov, K / Gkougkousis, E L / Gligorov, V V / Göbel, C / Golobardes, E / Golubkov, D / Golutvin, A / Gomes, A / Gomez Fernandez, S / Goncalves Abrantes, F / Goncerz, M / Gong, G / Gorelov, I V / Gotti, C / Grabowski, J P / Grammatico, T / Granado Cardoso, L A / Graugés, E / Graverini, E / Graziani, G / Grecu, A T / Greeven, L M / Grieser, N A / Grillo, L / Gromov, S / Gruberg Cazon, B R / Gu, C / Guarise, M / Guittiere, M / Günther, P A / Gushchin, E / Guth, A / Guz, Y / Gys, T / Hadavizadeh, T / Haefeli, G / Haen, C / Haimberger, J / Haines, S C / Halewood-Leagas, T / Halvorsen, M M / Hamilton, P M / Hammerich, J / Han, Q / Han, X / Hansen, E B / Hansmann-Menzemer, S / Hao, L / Harnew, N / Harrison, T / Hasse, C / Hatch, M / He, J / Heijhoff, K / Heinicke, K / Henderson, R D L / Hennequin, A M / Hennessy, K / Henry, L / Heuel, J / Hicheur, A / Hill, D / Hilton, M / Hollitt, S E / Hou, R / Hou, Y / Hu, J / Hu, W / Hu, X / Huang, W / Huang, X / Hulsbergen, W / Hunter, R J / Hushchyn, M / Hutchcroft, D / Ibis, P / Idzik, M / Ilin, D / Ilten, P / Inglessi, A / Iniukhin, A / Ishteev, A / Ivshin, K / Jacobsson, R / Jage, H / Jaimes Elles, S J / Jakobsen, S / Jans, E / Jashal, B K / Jawahery, A / Jevtic, V / Jiang, X / John, M / Johnson, D / Jones, C R / Jones, T P / Jost, B / Jurik, N / Juszczak, I / Kandybei, S / Kang, Y / Karacson, M / Karpenkov, D / Karpov, M / Kautz, J W / Keizer, F / Keller, D M / Kenzie, M / Ketel, T / Khanji, B / Kharisova, A / Kholodenko, S / Kirn, T / Kirsebom, V S / Kitouni, O / Klaver, S / Kleijne, N / Klimaszewski, K / Kmiec, M R / Koliiev, S / Kondybayeva, A / Konoplyannikov, A / Kopciewicz, P / Kopecna, R / Koppenburg, P / Korolev, M / Kostiuk, I / Kot, O / Kotriakhova, S / Kozachuk, A / Kravchenko, P / Kravchuk, L / Krawczyk, R D / Kreps, M / Kretzschmar, S / Krokovny, P / Krupa, W / Krzemien, W / Kubat, J / Kucewicz, W / Kucharczyk, M / Kudryavtsev, V / Kunde, G J / Lacarrere, D / Lafferty, G / Lai, A / Lampis, A / Lancierini, D / Lane, J J / Lane, R / Lanfranchi, G / Langenbruch, C / Langer, J / Lantwin, O / Latham, T / Lazzari, F / Lazzaroni, M / Le Gac, R / Lee, S H / Lefèvre, R / Leflat, A / Legotin, S / Lenisa, P / Leroy, O / Lesiak, T / Leverington, B / Li, H / Li, K / Li, P / Li, S / Li, Y / Li, Z / Liang, X / Lin, C / Lin, T / Lindner, R / Lisovskyi, V / Litvinov, R / Liu, G / Liu, H / Liu, Q / Liu, S / Lobo Salvia, A / Loi, A / Lollini, R / Lomba Castro, J / Longstaff, I / Lopes, J H / López Soliño, S / Lovell, G H / Lu, Y / Lucarelli, C / Lucchesi, D / Luchuk, S / Lucio Martinez, M / Lukashenko, V / Luo, Y / Lupato, A / Luppi, E / Lusiani, A / Lynch, K / Lyu, X-R / Ma, L / Ma, R / Maccolini, S / Machefert, F / Maciuc, F / Macko, V / Mackowiak, P / Maddrell-Mander, S / Madhan Mohan, L R / Maevskiy, A / Maisuzenko, D / Majewski, M W / Malczewski, J J / Malde, S / Malecki, B / Malinin, A / Maltsev, T / Malygina, H / Manca, G / Mancinelli, G / Manuzzi, D / Manzari, C A / Marangotto, D / Marchand, J F / Marconi, U / Mariani, S / Marin Benito, C / Marinangeli, M / Marks, J / Marshall, A M / Marshall, P J / Martelli, G / Martellotti, G / Martinazzoli, L / Martinelli, M / Martinez Santos, D / Martinez Vidal, F / Massafferri, A / Materok, M / Matev, R / Mathad, A / Matiunin, V / Matteuzzi, C / Mattioli, K R / Mauri, A / Maurice, E / Mauricio, J / Mazurek, M / McCann, M / Mcconnell, L / McGrath, T H / McHugh, N T / McNab, A / McNulty, R / Mead, J V / Meadows, B / Meier, G / Melnychuk, D / Meloni, S / Merk, M / Merli, A / Meyer Garcia, L / Mikhasenko, M / Milanes, D A / Millard, E / Milovanovic, M / Minard, M-N / Minotti, A / Mitchell, S E / Mitreska, B / Mitzel, D S / Mödden, A / Mohammed, R A / Moise, R D / Mokhnenko, S / Mombächer, T / Monroy, I A / Monteil, S / Morandin, M / Morello, G / Morello, M J / Moron, J / Morris, A B / Morris, A G / Mountain, R / Mu, H / Muheim, F / Mulder, M / Müller, K / Murphy, C H / Murray, D / Murta, R / Muzzetto, P / Naik, P / Nakada, T / Nandakumar, R / Nanut, T / Nasteva, I / Needham, M / Neri, N / Neubert, S / Neufeld, N / Neustroev, P / Newcombe, R / Niel, E M / Nieswand, S / Nikitin, N / Nolte, N S / Normand, C / Nunez, C / Oblakowska-Mucha, A / Obraztsov, V / Oeser, T / O'Hanlon, D P / Okamura, S / Oldeman, R / Oliva, F / Olivares, M E / Onderwater, C J G / O'Neil, R H / Otalora Goicochea, J M / Ovsiannikova, T / Owen, P / Oyanguren, A / Ozcelik, O / Padeken, K O / Pagare, B / Pais, P R / Pajero, T / Palano, A / Palutan, M / Pan, Y / Panshin, G / Papanestis, A / Pappagallo, M / Pappalardo, L L / Pappenheimer, C / Parker, W / Parkes, C / Passalacqua, B / Passaleva, G / Pastore, A / Patel, M / Patrignani, C / Pawley, C J / Pearce, A / Pellegrino, A / Pepe Altarelli, M / Perazzini, S / Pereima, D / Pereiro Castro, A / Perret, P / Petric, M / Petridis, K / Petrolini, A / Petrov, A / Petrucci, S / Petruzzo, M / Pham, H / Philippov, A / Piandani, R / Pica, L / Piccini, M / Pietrzyk, B / Pietrzyk, G / Pili, M / Pinci, D / Pisani, F / Pizzichemi, M / Placinta, V / Plews, J / Plo Casasus, M / Polci, F / Poli Lener, M / Poliakova, M / Poluektov, A / Polukhina, N / Polyakov, I / Polycarpo, E / Ponce, S / Popov, D / Popov, S / Poslavskii, S / Prasanth, K / Promberger, L / Prouve, C / Pugatch, V / Puill, V / Punzi, G / Qi, H R / Qian, W / Qin, N / Qu, S / Quagliani, R / Raab, N V / Rabadan Trejo, R I / Rachwal, B / Rademacker, J H / Rajagopalan, R / Rama, M / Ramos Pernas, M / Rangel, M S / Ratnikov, F / Raven, G / Rebollo De Miguel, M / Redi, F / Reiss, F / Remon Alepuz, C / Ren, Z / Renaudin, V / Resmi, P K / Ribatti, R / Ricci, A M / Ricciardi, S / Rinnert, K / Robbe, P / Robertson, G / Rodrigues, A B / Rodrigues, E / Rodriguez Lopez, J A / Rodriguez Rodriguez, E / Rollings, A / Roloff, P / Romanovskiy, V / Romero Lamas, M / Romero Vidal, A / Roth, J D / Rotondo, M / Rudolph, M S / Ruf, T / Ruiz Fernandez, R A / Ruiz Vidal, J / Ryzhikov, A / Ryzka, J / Saborido Silva, J J / Sagidova, N / Sahoo, N / Saitta, B / Salomoni, M / Sanchez Gras, C / Sanderswood, I / Santacesaria, R / Santamarina Rios, C / Santimaria, M / Santovetti, E / Saranin, D / Sarpis, G / Sarpis, M / Sarti, A / Satriano, C / Satta, A / Saur, M / Savrina, D / Sazak, H / Scantlebury Smead, L G / Scarabotto, A / Schael, S / Scherl, S / Schiller, M / Schindler, H / Schmelling, M / Schmidt, B / Schmitt, S / Schneider, O / Schopper, A / Schubiger, M / Schulte, S / Schune, M H / Schwemmer, R / Sciascia, B / Sciuccati, A / Sellam, S / Semennikov, A / Senghi Soares, M / Sergi, A / Serra, N / Sestini, L / Seuthe, A / Shang, Y / Shangase, D M / Shapkin, M / Shchemerov, I / Shchutska, L / Shears, T / Shekhtman, L / Shen, Z / Sheng, S / Shevchenko, V / Shields, E B / Shimizu, Y / Shmanin, E / Shupperd, J D / Siddi, B G / Silva Coutinho, R / Simi, G / Simone, S / Singla, M / Skidmore, N / Skuza, R / Skwarnicki, T / Slater, M W / Slazyk, I / Smallwood, J C / Smeaton, J G / Smith, E / Smith, M / Snoch, A / Soares Lavra, L / Sokoloff, M D / Soler, F J P / Solomin, A / Solovev, A / Solovyev, I / Souza De Almeida, F L / Souza De Paula, B / Spaan, B / Spadaro Norella, E / Spiridenkov, E / Spradlin, P / Sriskaran, V / Stagni, F / Stahl, M / Stahl, S / Stanislaus, S / Steinkamp, O / Stenyakin, O / Stevens, H / Stone, S / Strekalina, D / Suljik, F / Sun, J / Sun, L / Sun, Y / Svihra, P / Swallow, P N / Swientek, K / Szabelski, A / Szumlak, T / Szymanski, M / Taneja, S / Tanner, A R / Tat, M D / Terentev, A / Teubert, F / Thomas, E / Thompson, D J D / Thomson, K A / Tilquin, H / Tisserand, V / T'Jampens, S / Tobin, M / Tomassetti, L / Tonani, G / Tong, X / Torres Machado, D / Tou, D Y / Trifonova, E / Trilov, S M / Trippl, C / Tuci, G / Tully, A / Tuning, N / Ukleja, A / Unverzagt, D J / Ursov, E / Usachov, A / Ustyuzhanin, A / Uwer, U / Vagner, A / Vagnoni, V / Valassi, A / Valenti, G / Valls Canudas, N / van Beuzekom, M / Van Dijk, M / Van Hecke, H / van Herwijnen, E / van Veghel, M / Vazquez Gomez, R / Vazquez Regueiro, P / Vázquez Sierra, C / Vecchi, S / Velthuis, J J / Veltri, M / Venkateswaran, A / Veronesi, M / Vesterinen, M / Vieira, D / Vieites Diaz, M / Vilasis-Cardona, X / Vilella Figueras, E / Villa, A / Vincent, P / Volle, F C / Vom Bruch, D / Vorobyev, A / Vorobyev, V / Voropaev, N / Vos, K / Waldi, R / Walsh, J / Wang, C / Wang, J / Wang, M / Wang, R / Wang, Y / Wang, Z / Ward, J A / Watson, N K / Websdale, D / Weisser, C / Westhenry, B D C / White, D J / Whitehead, M / Wiederhold, A R / Wiedner, D / Wilkinson, G / Wilkinson, M K / Williams, I / Williams, M / Williams, M R J / Williams, R / Wilson, F F / Wislicki, W / Witek, M / Witola, L / Wong, C P / Wormser, G / Wotton, S A / Wu, H / Wyllie, K / Xiang, Z / Xiao, D / Xie, Y / Xu, A / Xu, J / Xu, L / Xu, M / Xu, Q / Xu, Z / Yang, D / Yang, S / Yang, Y / Yang, Z / Yeomans, L E / Yin, H / Yu, J / Yuan, X / Zaffaroni, E / Zavertyaev, M / Zdybal, M / Zenaiev, O / Zeng, M / Zhang, D / Zhang, L / Zhang, S / Zhang, Y / Zharkova, A / Zhelezov, A / Zheng, Y / Zhou, T / Zhou, X / Zhou, Y / Zhovkovska, V / Zhu, X / Zhu, Z / Zhukov, V / Zou, Q / Zucchelli, S / Zuliani, D / Zunica, G

    Physical review letters

    2023  Volume 131, Issue 10, Page(s) 102301

    Abstract: ... of the transverse momentum p_{T}, and the rapidity in the nucleon-nucleon center-of-mass frame y^{*}. In the forward ... expectations is found in the kinematic region of p_{T}>6  GeV/c and -3.25

    Abstract The production of prompt D^{0} mesons in proton-lead collisions in both the forward and backward rapidity regions at a center-of-mass energy per nucleon pair of sqrt[s_{NN}]=8.16  TeV is measured by the LHCb experiment. The nuclear modification factor of prompt D^{0} mesons is determined as a function of the transverse momentum p_{T}, and the rapidity in the nucleon-nucleon center-of-mass frame y^{*}. In the forward rapidity region, significantly suppressed production with respect to pp collisions is measured, which provides significant constraints on models of nuclear parton distributions and hadron production down to the very low Bjorken-x region of ∼10^{-5}. In the backward rapidity region, a suppression with a significance of 2.0-3.8 standard deviations compared to parton distribution functions in a nuclear environment expectations is found in the kinematic region of p_{T}>6  GeV/c and -3.25<y^{*}<-2.5, corresponding to x∼0.01.<br />
    Language English
    Publishing date 2023-09-22
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.131.102301
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Nuclear Modification Factor of Neutral Pions in the Forward and Backward Regions in p-Pb Collisions.

    Aaij, R / Abdelmotteleb, A S W / Abellan Beteta, C / Abudinén, F / Ackernley, T / Adeva, B / Adinolfi, M / Afsharnia, H / Agapopoulou, C / Aidala, C A / Aiola, S / Ajaltouni, Z / Akar, S / Akiba, K / Albrecht, J / Alessio, F / Alexander, M / Alfonso Albero, A / Aliouche, Z /
    Alvarez Cartelle, P / Amato, S / Amey, J L / Amhis, Y / An, L / Anderlini, L / Andersson, M / Andreianov, A / Andreotti, M / Ao, D / Archilli, F / Artamonov, A / Artuso, M / Arzymatov, K / Aslanides, E / Atzeni, M / Audurier, B / Bachmann, S / Bachmayer, M / Back, J J / Bailly-Reyre, A / Baladron Rodriguez, P / Balagura, V / Baldini, W / Baptista de Souza Leite, J / Barbetti, M / Barlow, R J / Barsuk, S / Barter, W / Bartolini, M / Baryshnikov, F / Basels, J M / Bassi, G / Batsukh, B / Battig, A / Bay, A / Beck, A / Becker, M / Bedeschi, F / Bediaga, I B / Beiter, A / Belavin, V / Belin, S / Bellee, V / Belous, K / Belov, I / Belyaev, I / Bencivenni, G / Ben-Haim, E / Berezhnoy, A / Bernet, R / Berninghoff, D / Bernstein, H C / Bertella, C / Bertolin, A / Betancourt, C / Betti, F / Bezshyiko, Ia / Bhasin, S / Bhom, J / Bian, L / Bieker, M S / Biesuz, N V / Bifani, S / Billoir, P / Biolchini, A / Birch, M / Bishop, F C R / Bitadze, A / Bizzeti, A / Bjørn, M / Blago, M P / Blake, T / Blanc, F / Blusk, S / Bobulska, D / Boelhauve, J A / Boente Garcia, O / Boettcher, T / Boldyrev, A / Bondar, N / Borghi, S / Borisyak, M / Borsato, M / Borsuk, J T / Bouchiba, S A / Bowcock, T J V / Boyer, A / Bozzi, C / Bradley, M J / Braun, S / Brea Rodriguez, A / Brodzicka, J / Brossa Gonzalo, A / Brundu, D / Buonaura, A / Buonincontri, L / Burke, A T / Burr, C / Bursche, A / Butkevich, A / Butter, J S / Buytaert, J / Byczynski, W / Cadeddu, S / Cai, H / Calabrese, R / Calefice, L / Cali, S / Calladine, R / Calvi, M / Calvo Gomez, M / Camargo Magalhaes, P / Campana, P / Campora Perez, D H / Campoverde Quezada, A F / Capelli, S / Capriotti, L / Carbone, A / Carboni, G / Cardinale, R / Cardini, A / Carli, I / Carniti, P / Carus, L / Casais Vidal, A / Caspary, R / Casse, G / Cattaneo, M / Cavallero, G / Cavallini, V / Celani, S / Cerasoli, J / Cervenkov, D / Chadwick, A J / Chapman, M G / Charles, M / Charpentier, Ph / Chavez Barajas, C A / Chefdeville, M / Chen, C / Chen, S / Chernov, A / Chobanova, V / Cholak, S / Chrzaszcz, M / Chubykin, A / Chulikov, V / Ciambrone, P / Cicala, M F / Cid Vidal, X / Ciezarek, G / Ciullo, G / Clarke, P E L / Clemencic, M / Cliff, H V / Closier, J / Cobbledick, J L / Coco, V / Coelho, J A B / Cogan, J / Cogneras, E / Cojocariu, L / Collins, P / Colombo, T / Congedo, L / Contu, A / Cooke, N / Coombs, G / Corredoira, I / Corti, G / Costa Sobral, C M / Couturier, B / Craik, D C / Crkovská, J / Cruz Torres, M / Currie, R / Da Silva, C L / Dadabaev, S / Dai, L / Dall'Occo, E / Dalseno, J / D'Ambrosio, C / Danilina, A / d'Argent, P / Davies, J E / Davis, A / De Aguiar Francisco, O / de Boer, J / De Bruyn, K / De Capua, S / De Cian, M / De Freitas Carneiro Da Graca, U / De Lucia, E / De Miranda, J M / De Paula, L / De Serio, M / De Simone, D / De Simone, P / De Vellis, F / de Vries, J A / Dean, C T / Debernardis, F / Decamp, D / Dedu, V / Del Buono, L / Delaney, B / Dembinski, H-P / Denysenko, V / Deschamps, O / Dettori, F / Dey, B / Di 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    Physical review letters

    2023  Volume 131, Issue 4, Page(s) 42302

    Abstract: ... is measured differentially in transverse momentum (p_{T}) for 1.5<p_{T}<10.0  GeV and in center ...

    Abstract The nuclear modification factor of neutral pions is measured in proton-lead collisions collected at a center-of-mass energy per nucleon of 8.16 TeV with the LHCb detector. The π^{0} production cross section is measured differentially in transverse momentum (p_{T}) for 1.5<p_{T}<10.0  GeV and in center-of-mass pseudorapidity (η_{c.m.}) regions 2.5<η_{c.m.}<3.5 (forward) and -4.0<η_{c.m.}<-3.0 (backward) defined relative to the proton beam direction. The forward measurement shows a sizable suppression of π^{0} production, while the backward measurement shows the first evidence of π^{0} enhancement in proton-lead collisions at the LHC. Together, these measurements provide precise constraints on models of nuclear structure and particle production in high-energy nuclear collisions.
    Language English
    Publishing date 2023-07-05
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.131.042302
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Observation of a Narrow Pentaquark State, P_{c}(4312)^{+}, and of the Two-Peak Structure of the P_{c}(4450)^{+}.

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    Physical review letters

    2019  Volume 122, Issue 22, Page(s) 222001

    Abstract: A narrow pentaquark state, P_{c}(4312)^{+}, decaying to J/ψp, is discovered with a statistical ... than that previously analyzed by the LHCb Collaboration. The P_{c}(4450)^{+} pentaquark structure formerly reported ... by LHCb is confirmed and observed to consist of two narrow overlapping peaks, P_{c}(4440)^{+} and P_{c ...

    Abstract A narrow pentaquark state, P_{c}(4312)^{+}, decaying to J/ψp, is discovered with a statistical significance of 7.3σ in a data sample of Λ_{b}^{0}→J/ψpK^{-} decays, which is an order of magnitude larger than that previously analyzed by the LHCb Collaboration. The P_{c}(4450)^{+} pentaquark structure formerly reported by LHCb is confirmed and observed to consist of two narrow overlapping peaks, P_{c}(4440)^{+} and P_{c}(4457)^{+}, where the statistical significance of this two-peak interpretation is 5.4σ. The proximity of the Σ_{c}^{+}D[over ¯]^{0} and Σ_{c}^{+}D[over ¯]^{*0} thresholds to the observed narrow peaks suggests that they play an important role in the dynamics of these states.
    Language English
    Publishing date 2019-07-08
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.122.222001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Measurement of the Nuclear Modification Factor and Prompt Charged Particle Production in p-Pb and pp Collisions at sqrt[s_{NN}]=5  TeV.

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A / Vincent, P / Vom Bruch, D / Vorobyev, A / Vorobyev, V / Voropaev, N / Vos, K / Waldi, R / Walsh, J / Wang, C / Wang, J / Wang, M / Wang, R / Wang, Y / Wang, Z / Wark, H M / Watson, N K / Weber, S G / Websdale, D / Weisser, C / Westhenry, B D C / White, D J / Whitehead, M / Wiedner, D / Wilkinson, G / Wilkinson, M / Williams, I / Williams, M / Williams, M R J / Wilson, F F / Wislicki, W / Witek, M / Witola, L / Wormser, G / Wotton, S A / Wu, H / Wyllie, K / Xiang, Z / Xiao, D / Xie, Y / Xu, A / Xu, J / Xu, L / Xu, M / Xu, Q / Xu, Z / Yang, D / Yang, S / Yang, Y / Yang, Z / Yao, Y / Yeomans, L E / Yin, H / Yu, J / Yuan, X / Yushchenko, O / Zaffaroni, E / Zavertyaev, M / Zdybal, M / Zenaiev, O / Zeng, M / Zhang, D / Zhang, L / Zhang, S / Zhang, Y / Zharkova, A / Zhelezov, A / Zheng, Y / Zhou, X / Zhou, Y / Zhu, X / Zhu, Z / Zhukov, V / Zonneveld, J B / Zou, Q / Zucchelli, S / Zuliani, D / Zunica, G

    Physical review letters

    2022  Volume 128, Issue 14, Page(s) 142004

    Abstract: ... of pseudorapidity (η) and transverse momentum (p_{T}) with respect to the proton beam direction. The nuclear ... and 2.0<η<4.8 (forward region), and p_{T} between 0.2<p_{T}<8.0  GeV/c. The results show a suppression ... region and an enhancement in the backward region for p_{T} larger than 1.5  GeV/c. This measurement ...

    Abstract The production of prompt charged particles in proton-lead collisions and in proton-proton collisions at the nucleon-nucleon center-of-mass energy sqrt[s_{NN}]=5  TeV is studied at LHCb as a function of pseudorapidity (η) and transverse momentum (p_{T}) with respect to the proton beam direction. The nuclear modification factor for charged particles is determined as a function of η between -4.8<η<-2.5 (backward region) and 2.0<η<4.8 (forward region), and p_{T} between 0.2<p_{T}<8.0  GeV/c. The results show a suppression of charged particle production in proton-lead collisions relative to proton-proton collisions in the forward region and an enhancement in the backward region for p_{T} larger than 1.5  GeV/c. This measurement constrains nuclear PDFs and saturation models at previously unexplored values of the parton momentum fraction down to 10^{-6}.
    Language English
    Publishing date 2022-04-27
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.128.142004
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Book ; Online: Observation of $\eta_{c}(2S) \to p \bar p$ and search for $X(3872) \to p \bar p$ decays

    LHCb collaboration / Aaij, R. / Adeva, B. / Adinolfi, M. / Ajaltouni, Z. / Akar, S. / Albrecht, J. / Alessio, F. / Alexander, M. / Ali, S. / Alkhazov, G. / Cartelle, P. Alvarez / Alves Jr, A. A. / Amato, S. / Amerio, S. / Amhis, Y. / An, L. / Anderlini, L. / Andreassi, G. /
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Souza / Spaan, B. / Spradlin, P. / Sridharan, S. / Stagni, F. / Stahl, M. / Stahl, S. / Stefko, P. / Stefkova, S. / Steinkamp, O. / Stemmle, S. / Stenyakin, O. / Stevenson, S. / Stoica, S. / Stone, S. / Storaci, B. / Stracka, S. / Straticiuc, M. / Straumann, U. / Sun, L. / Sutcliffe, W. / Swientek, K. / Syropoulos, V. / Szczekowski, M. / Szumlak, T. / T'Jampens, S. / Tayduganov, A. / Tekampe, T. / Tellarini, G. / Teubert, F. / Thomas, C. / Thomas, E. / van Tilburg, J. / Tisserand, V. / Tobin, M. / Tolk, S. / Tomassetti, L. / Tonelli, D. / Topp-Joergensen, S. / Toriello, F. / Tournefier, E. / Tourneur, S. / Trabelsi, K. / Traill, M. / Tran, M. T. / Tresch, M. / Trisovic, A. / Tsaregorodtsev, A. / Tsopelas, P. / Tully, A. / Tuning, N. / Ukleja, A. / Ustyuzhanin, A. / Uwer, U. / Vacca, C. / Vagnoni, V. / Valat, S. / Valenti, G. / Vallier, A. / Gomez, R. Vazquez / Regueiro, P. Vazquez / Vecchi, S. / van Veghel, M. / Velthuis, J. J. / Veltri, M. / Veneziano, G. / Venkateswaran, A. / Vernet, M. / Vesterinen, M. / Viaud, B. / Vieira, D. / Diaz, M. Vieites / Vilasis-Cardona, X. / Volkov, V. / Vollhardt, A. / Voneki, B. / Voong, D. / Vorobyev, A. / Vorobyev, V. / Voß, C. / de Vries, J. A. / Sierra, C. Vázquez / Waldi, R. / Wallace, C. / Wallace, R. / Walsh, J. / Wang, J. / Ward, D. R. / Wark, H. M. / Watson, N. K. / Websdale, D. / Weiden, A. / Whitehead, M. / Wicht, J. / Wilkinson, G. / Wilkinson, M. / Williams, M. / Williams, M. P. / Williams, T. / Wilson, F. F. / Wimberley, J. / Winn, M-A / Wishahi, J. / Wislicki, W. / Witek, M. / Wormser, G. / Wotton, S. A. / Wraight, K. / Wright, S. / Wyllie, K. / Xie, Y. / Xing, Z. / Xu, Z. / Yang, Z. / Yin, H. / Yu, J. / Yuan, X. / Yushchenko, O. / Zangoli, M. / Zarebski, K. A. / Zavertyaev, M. / Zhang, L. / Zhang, Y. / Zhelezov, A. / Zheng, Y. / Zhokhov, A. / Zhukov, V. / Zucchelli, S.

    2016  

    Abstract: The first observation of the decay $\eta_{c}(2S) \to p \bar p$ is reported using proton-proton ... frac{{\mathcal B}(B^{+} \to \eta_{c}(2S) K^{+}) \times {\mathcal B}(\eta_{c}(2S) \to p \bar p ... mathcal B}(B^{+} \to J/\psi K^{+}) \times {\mathcal B}(J/\psi\to p \bar p)} =~& (1.58 \pm 0.33 \pm 0.09 ...

    Abstract The first observation of the decay $\eta_{c}(2S) \to p \bar p$ is reported using proton-proton collision data corresponding to an integrated luminosity of $3.0\rm \, fb^{-1}$ recorded by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. The $\eta_{c}(2S)$ resonance is produced in the decay $B^{+} \to [c\bar c] K^{+}$. The product of branching fractions normalised to that for the $J/\psi$ intermediate state, ${\cal R}_{\eta_{c}(2S)}$, is measured to be \begin{align*} {\cal R}_{\eta_{c}(2S)}\equiv\frac{{\mathcal B}(B^{+} \to \eta_{c}(2S) K^{+}) \times {\mathcal B}(\eta_{c}(2S) \to p \bar p)}{{\mathcal B}(B^{+} \to J/\psi K^{+}) \times {\mathcal B}(J/\psi\to p \bar p)} =~& (1.58 \pm 0.33 \pm 0.09)\times 10^{-2}, \end{align*} where the first uncertainty is statistical and the second systematic. No signals for the decays $B^{+} \to X(3872) (\to p \bar p) K^{+}$ and $B^{+} \to \psi(3770) (\to p \bar p) K^{+}$ are seen, and the 95\% confidence level upper limits on their relative branching ratios are % found to be ${\cal R}_{X(3872)}<0.25\times10^{-2}$ and ${\cal R}_{\psi(3770))}<0.10$. In addition, the mass differences between the $\eta_{c}(1S)$ and the $J/\psi$ states, between the $\eta_{c}(2S)$ and the $\psi(2S)$ states, and the natural width of the $\eta_{c}(1S)$ are measured as \begin{align*} M_{J/\psi} - M_{\eta_{c}(1S)} =~& 110.2 \pm 0.5 \pm 0.9 \rm \, MeV, M_{\psi(2S)} -M_{\eta_{c}(2S)} =~ & 52.5 \pm 1.7 \pm 0.6 \rm \, MeV, \Gamma_{\eta_{c}(1S)} =~& 34.0 \pm 1.9 \pm 1.3 \rm \, MeV. \end{align*}

    Comment: 16 pages, 2 figures All figures and tables, along with any supplementary material and additional information, are available at https://lhcbproject.web.cern.ch/lhcbproject/Publications/LHCbProjectPublic/LHCb-PAPER-2016-016.html
    Keywords High Energy Physics - Experiment
    Subject code 612
    Publishing date 2016-07-21
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: Measurement of Antiproton Production in p-He Collisions at sqrt[s_{NN}]=110  GeV.

    Aaij, R / Abellán Beteta, C / Adeva, B / Adinolfi, M / Aidala, C A / Ajaltouni, Z / Akar, S / Albicocco, P / Albrecht, J / Alessio, F / Alexander, M / Alfonso Albero, A / Alkhazov, G / Alvarez Cartelle, P / Alves, A A / Amato, S / Amerio, S / Amhis, Y / An, L /
    Anderlini, L / Andreassi, G / Andreotti, M / Andrews, J E / Appleby, R B / Archilli, F / d'Argent, P / Arnau Romeu, J / Artamonov, A / Artuso, M / Arzymatov, K / Aslanides, E / Atzeni, M / Audurier, B / Bachmann, S / Back, J J / Baker, S / Balagura, V / Baldini, W / Baranov, A / Barlow, R J / Barsuk, S / Barter, W / Baryshnikov, F / Batozskaya, V / Batsukh, B / Battista, V / Bay, A / Beddow, J / Bedeschi, F / Bediaga, I / Beiter, A / Bel, L J / Belin, S / Beliy, N / Bellee, V / Belloli, N / Belous, K / Belyaev, I / Ben-Haim, E / Bencivenni, G / Benson, S / Beranek, S / Berezhnoy, A / Bernet, R / Berninghoff, D / Bertholet, E / Bertolin, A / Betancourt, C / Betti, F / Bettler, M O / van Beuzekom, M / Bezshyiko, Ia / Bhasin, S / Bhom, J / Bifani, S / Billoir, P / Birnkraut, A / Bizzeti, A / Bjørn, M / Blago, M P / Blake, T / Blanc, F / Blusk, S / Bobulska, D / Bocci, V / Boente Garcia, O / Boettcher, T / Bondar, A / Bondar, N / Borghi, S / Borisyak, M / Borsato, M / Bossu, F / Boubdir, M / Bowcock, T J V / Bozzi, C / Braun, S / Brodski, M / Brodzicka, J / Brossa Gonzalo, A / Brundu, D / Buchanan, E / Buonaura, A / Burr, C / Bursche, A / Buytaert, J / Byczynski, W / Cadeddu, S / Cai, H / Calabrese, R / Calladine, R / Calvi, M / Calvo Gomez, M / Camboni, A / Campana, P / Campora Perez, D H / Capriotti, L / Carbone, A / Carboni, G / Cardinale, R / Cardini, A / Carniti, P / Carson, L / Carvalho Akiba, K / Casse, G / Cassina, L / Cattaneo, M / Cavallero, G / Cenci, R / Chamont, D / Chapman, M G / Charles, M / Charpentier, Ph / Chatzikonstantinidis, G / Chefdeville, M / Chekalina, V / Chen, C / Chen, S / Chitic, S-G / Chobanova, V / Chrzaszcz, M / Chubykin, A / Ciambrone, P / Cid Vidal, X / Ciezarek, G / Clarke, P E L / Clemencic, M / Cliff, H V / Closier, J / Coco, V / Coelho, J A B / Cogan, J / Cogneras, E / Cojocariu, L / Collins, P / Colombo, T / Comerma-Montells, A / Contu, A / Coombs, G / Coquereau, S / Corti, G / Corvo, M / Costa Sobral, C M / Couturier, B / Cowan, G A / Craik, D C / Crocombe, A / Cruz Torres, M / Currie, R / D'Ambrosio, C / Da Cunha Marinho, F / Da Silva, C L / Dall'Occo, E / Dalseno, J / Danilina, A / Davis, A / De Aguiar Francisco, O / De Bruyn, K / De Capua, S / De Cian, M / De Miranda, J M / De Paula, L / De Serio, M / De Simone, P / Dean, C T / Decamp, D / Del Buono, L / Delaney, B / Dembinski, H-P / Demmer, M / Dendek, A / Derkach, D / Deschamps, O / Desse, F / Dettori, F / Dey, B / Di Canto, A / Di Nezza, P / Didenko, S / Dijkstra, H / Dordei, F / Dorigo, M / Dosil Suárez, A / Douglas, L / Dovbnya, A / Dreimanis, K / Dufour, L / Dujany, G / Durante, P / Durham, J M / Dutta, D / Dzhelyadin, R / Dziewiecki, M / Dziurda, A / Dzyuba, A / Easo, S / Egede, U / Egorychev, V / Eidelman, S / Eisenhardt, S / Eitschberger, U / Ekelhof, R / Eklund, L / Ely, S / Ene, A / Escher, S / Esen, S / Evans, T / Falabella, A / Farley, N / Farry, S / Fazzini, D / Federici, L / Fernandez Declara, P / Fernandez Prieto, A / Ferrari, F / Ferreira Lopes, L / Ferreira Rodrigues, F / Ferro-Luzzi, M / Filippov, S / Fini, R A / Fiorini, M / Firlej, M / Fitzpatrick, C / Fiutowski, T / Fleuret, F / Fontana, M / Fontanelli, F / Forty, R / Franco Lima, V / Frank, M / Frei, C / Fu, J / Funk, W / Färber, C / Féo Pereira Rivello Carvalho, M / Gabriel, E / Gallas Torreira, A / Galli, D / Gallorini, S / Gambetta, S / Gan, Y / Gandelman, M / Gandini, P / Gao, Y / Garcia Martin, L M / Garcia Plana, B / García Pardiñas, J / Garra Tico, J / Garrido, L / Gascon, D / Gaspar, C / Gavardi, L / Gazzoni, G / Gerick, D / Gersabeck, E / Gersabeck, M / Gershon, T / Gerstel, D / Ghez, Ph / Gianì, S / Gibson, V / Girard, O G / Giubega, L / Gizdov, K / Gligorov, V V / Golubkov, D / Golutvin, A / Gomes, A / Gorelov, I V / Gotti, C / Govorkova, E / Grabowski, J P / Graciani Diaz, R / Granado Cardoso, L A / Graugés, E / Graverini, E / Graziani, G / Grecu, A / Greim, R / Griffith, P / Grillo, L / Gruber, L / Gruberg Cazon, B R / Grünberg, O / Gu, C / 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Kotriakhova, S / Kozeiha, M / Kravchuk, L / Kreps, M / Kress, F / Krokovny, P / Krupa, W / Krzemien, W / Kucewicz, W / Kucharczyk, M / Kudryavtsev, V / Kuonen, A K / Kvaratskheliya, T / Lacarrere, D / Lafferty, G / Lai, A / Lancierini, D / Lanfranchi, G / Langenbruch, C / Latham, T / Lazzeroni, C / Le Gac, R / Leflat, A / Lefrançois, J / Lefèvre, R / Lemaitre, F / Leroy, O / Lesiak, T / Leverington, B / Li, P-R / Li, T / Li, Z / Liang, X / Likhomanenko, T / Lindner, R / Lionetto, F / Lisovskyi, V / Liu, X / Loh, D / Loi, A / Longstaff, I / Lopes, J H / Lovell, G H / Lucarelli, C / Lucchesi, D / Lucio Martinez, M / Lupato, A / Luppi, E / Lupton, O / Lusiani, A / Lyu, X / Machefert, F / Maciuc, F / Macko, V / Mackowiak, P / Maddrell-Mander, S / Maev, O / Maguire, K / Maisuzenko, D / Majewski, M W / Malde, S / Malecki, B / Malinin, A / Maltsev, T / Manca, G / Mancinelli, G / Marangotto, D / Maratas, J / Marchand, J F / Marconi, U / Mariani, S / Marin Benito, C / Marinangeli, M / Marino, P / Marks, J / Marshall, P J / Martellotti, G / Martin, M / Martinelli, M / Martinez Santos, D / Martinez Vidal, F / Massafferri, A / Materok, M / Matev, R / Mathad, A / Mathe, Z / Matteuzzi, C / Mauri, A / Maurice, E / Maurin, B / Mazurov, A / McCann, M / McNab, A / McNulty, R / Mead, J V / Meadows, B / Meaux, C / Meier, F / Meinert, N / Melnychuk, D / Merk, M / Merli, A / Michielin, E / Milanes, D A / Millard, E / Minard, M-N / Minzoni, L / Mitzel, D S / Mogini, A / Molina Rodriguez, J / Mombächer, T / Monroy, I A / Monteil, S / Morandin, M / Morello, G / Morello, M J / Morgunova, O / Moron, J / Morris, A B / Mountain, R / Muheim, F / Mulder, M / Murphy, C H / Murray, D / Mödden, A / Müller, D / Müller, J / Müller, K / Müller, V / Naik, P / Nakada, T / Nandakumar, R / Nandi, A / Nanut, T / Nasteva, I / Needham, M / Neri, N / Neubert, S / Neufeld, N / Neuner, M / Newcombe, R / Nguyen, T D / Nguyen-Mau, C / Nieswand, S / Niet, R / Nikitin, N / Nogay, A / Nolte, N S / O'Hanlon, D P / Oblakowska-Mucha, A / Obraztsov, V / Ogilvy, S / Oldeman, R / Onderwater, C J G / Ossowska, A / Otalora Goicochea, J M / Owen, P / Oyanguren, A / Pais, P R / Pajero, T / Palano, A / Palutan, M / Panshin, G / Papanestis, A / Pappagallo, M / Pappalardo, L L / Parker, W / Parkes, C / Passaleva, G / Pastore, A / Patel, M / Patrignani, C / Pearce, A / Pellegrino, A / Penso, G / Pepe Altarelli, M / Perazzini, S / Pereima, D / Perret, P / Pescatore, L / Petridis, K / Petrolini, A / Petrov, A / Petrucci, S / Petruzzo, M / Pietrzyk, B / Pietrzyk, G / Pikies, M / Pili, M / Pinci, D / Pinzino, J / Pisani, F / Piucci, A / Placinta, V / Playfer, S / Plews, J / Plo Casasus, M / Polci, F / Poli Lener, M / Poluektov, A / Polukhina, N / Polyakov, I / Polycarpo, E / Pomery, G J / Ponce, S / Popov, A / Popov, D / Poslavskii, S / Potterat, C / Price, E / Prisciandaro, J / Prouve, C / Pugatch, V / Puig Navarro, A / Pullen, H / Punzi, G / Qian, W / Qin, J / Quagliani, R / Quintana, B / Rachwal, B / Rademacker, J H / Rama, M / Ramos Pernas, M / Rangel, M S / Ratnikov, F / Raven, G / Ravonel Salzgeber, M / Reboud, M / Redi, F / Reichert, S / Dos Reis, A C / Reiss, F / Remon Alepuz, C / Ren, Z / Renaudin, V / Ricciardi, S / Richards, S / Rinnert, K / Robbe, P / Robert, A / Rodrigues, A B / Rodrigues, E / Rodriguez Lopez, J A / Roehrken, M / Roiser, S / Rollings, A / Romanovskiy, V / Romero Vidal, A / Rotondo, M / Rudolph, M S / Ruf, T / Ruiz Vidal, J / Saborido Silva, J J / Sagidova, N / Saitta, B / Salustino Guimaraes, V / Sanchez Gras, C / Sanchez Mayordomo, C / Sanmartin Sedes, B / Santacesaria, R / Santamarina Rios, C / Santimaria, M / Santovetti, E / Sarpis, G / Sarti, A / Satriano, C / Satta, A / Saur, M / Savrina, D / Schael, S / Schellenberg, M / Schiller, M / Schindler, H / Schmelling, M / Schmelzer, T / Schmidt, B / Schneider, O / Schopper, A / Schreiner, H F / Schubiger, M / Schune, M H / Schwemmer, R / Sciascia, B / Sciubba, A / Semennikov, A / Sepulveda, E S / Sergi, A / Serra, N / Serrano, J / Sestini, L / Seuthe, A / Seyfert, P / Shapkin, M / Shcheglov, Y / Shears, T / Shekhtman, L / Shevchenko, V / Shmanin, E / Siddi, B G / Silva Coutinho, R / Silva de Oliveira, L / Simi, G / Simone, S / Skiba, I / Skidmore, N / Skwarnicki, T / Slater, M W / Smeaton, J G / Smith, E / Smith, I T / Smith, M / Soares, M / Soares Lavra, L / Sokoloff, M D / Soler, F J P / Souza De Paula, B / Spaan, B / Spadaro Norella, E / Spradlin, P / Stagni, F / Stahl, M / Stahl, S / Stefko, P / Stefkova, S / Steinkamp, O / Stemmle, S / Stenyakin, O / Stepanova, M / Stevens, H / Stocchi, A / Stone, S / Storaci, B / Stracka, S / Stramaglia, M E / Straticiuc, M / Straumann, U / Strokov, S / Sun, J / Sun, L / Swientek, K / Szumlak, T / Szymanski, M / T'Jampens, S / Tang, Z / Tayduganov, A / Tekampe, T / Tellarini, G / Teubert, F / Thomas, E / van Tilburg, J / Tilley, M J / Tisserand, V / Tobin, M / Tolk, S / Tomassetti, L / Tonelli, D / Tou, D Y / Tourinho Jadallah Aoude, R / 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    Physical review letters

    2018  Volume 121, Issue 22, Page(s) 222001

    Abstract: ... section in p-He collisions, and impact the interpretation of recent results on antiproton cosmic rays ...

    Abstract The cross section for prompt antiproton production in collisions of protons with an energy of 6.5 TeV incident on helium nuclei at rest is measured with the LHCb experiment from a data set corresponding to an integrated luminosity of 0.5  nb^{-1}. The target is provided by injecting helium gas into the LHC beam line at the LHCb interaction point. The reported results, covering antiproton momenta between 12 and 110  GeV/c, represent the first direct determination of the antiproton production cross section in p-He collisions, and impact the interpretation of recent results on antiproton cosmic rays from space-borne experiments.
    Language English
    Publishing date 2018-10-23
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.121.222001
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  7. Book ; Online: Observation of a narrow pentaquark state, $P_c(4312)^+$, and of two-peak structure of the $P_c(4450)^+$

    LHCb collaboration / Aaij, R. / Beteta, C. Abellán / Adeva, B. / Adinolfi, M. / Aidala, C. A. / Ajaltouni, Z. / Akar, S. / Albicocco, P. / Albrecht, J. / Alessio, F. / Alexander, M. / Albero, A. Alfonso / Alkhazov, G. / Cartelle, P. Alvarez / Alves Jr, A. A. / Amato, S. / Amhis, Y. / An, L. /
    Anderlini, L. / Andreassi, G. / Andreotti, M. / Andrews, J. E. / Archilli, F. / d'Argent, P. / Romeu, J. Arnau / Artamonov, A. / Artuso, M. / Arzymatov, K. / Aslanides, E. / Atzeni, M. / Audurier, B. / Bachmann, S. / Back, J. J. / Baker, S. / Balagura, V. / Baldini, W. / Baranov, A. / Barlow, R. J. / Barsuk, S. / Barter, W. / Bartolini, M. / Baryshnikov, F. / Batozskaya, V. / Batsukh, B. / Battig, A. / Battista, V. / Bay, A. / Bedeschi, F. / Bediaga, I. / Beiter, A. / Bel, L. J. / Belavin, V. / Belin, S. / Beliy, N. / Bellee, V. / Belloli, N. / Belous, K. / Belyaev, I. / Ben-Haim, E. / Bencivenni, G. / Benson, S. / Beranek, S. / Berezhnoy, A. / Bernet, R. / Berninghoff, D. / Bertholet, E. / Bertolin, A. / Betancourt, C. / Betti, F. / Bettler, M. O. / van Beuzekom, M. / Bezshyiko, Ia. / Bhasin, S. / Bhom, J. / Bieker, M. S. / Bifani, S. / Billoir, P. / Birnkraut, A. / Bizzeti, A. / Bjørn, M. / Blago, M. P. / Blake, T. / Blanc, F. / Blusk, S. / Bobulska, D. / Bocci, V. / Garcia, O. Boente / Boettcher, T. / Bondar, A. / Bondar, N. / Borghi, S. / Borisyak, M. / Borsato, M. / Boubdir, M. / Bowcock, T. J. V. / Bozzi, C. / Braun, S. / Rodriguez, A. Brea / Brodski, M. / Brodzicka, J. / Gonzalo, A. Brossa / Brundu, D. / Buchanan, E. / Buonaura, A. / Burr, C. / Bursche, A. / Butter, J. S. / Buytaert, J. / Byczynski, W. / Cadeddu, S. / Cai, H. / Calabrese, R. / Cali, S. / Calladine, R. / Calvi, M. / Gomez, M. Calvo / Camboni, A. / Campana, P. / Perez, D. H. Campora / Capriotti, L. / Carbone, A. / Carboni, G. / Cardinale, R. / Cardini, A. / Carniti, P. / Akiba, K. Carvalho / Vidal, A. Casais / Casse, G. / Cattaneo, M. / Cavallero, G. / Cenci, R. / Chapman, M. G. / Charles, M. / Charpentier, Ph. / Chatzikonstantinidis, G. / Chefdeville, M. / Chekalina, V. / Chen, C. / Chen, S. / Chitic, S. -G. / Chobanova, V. / Chrzaszcz, M. / Chubykin, A. / Ciambrone, P. / Vidal, X. Cid / Ciezarek, G. / Cindolo, F. / Clarke, P. E. L. / Clemencic, M. / Cliff, H. V. / Closier, J. / Coco, V. / Coelho, J. A. B. / Cogan, J. / Cogneras, E. / Cojocariu, L. / Collins, P. / Colombo, T. / Comerma-Montells, A. / Contu, A. / Coombs, G. / Coquereau, S. / Corti, G. / Sobral, C. M. Costa / Couturier, B. / Cowan, G. A. / Craik, D. C. / Crocombe, A. / Torres, M. Cruz / Currie, R. / D'Ambrosio, C. / Da Silva, C. L. / Dall'Occo, E. / Dalseno, J. / Danilina, A. / Davis, A. / Francisco, O. De Aguiar / De Bruyn, K. / De Capua, S. / De Cian, M. / De Miranda, J. M. / De Paula, L. / De Serio, M. / De Simone, P. / Dean, C. T. / Dean, W. / Decamp, D. / Del Buono, L. / Delaney, B. / Dembinski, H. -P. / Demmer, M. / Dendek, A. / Derkach, D. / Deschamps, O. / Desse, F. / Dettori, F. / Dey, B. / Di Canto, A. / Di Nezza, P. / Didenko, S. / Dijkstra, H. / Dordei, F. / Dorigo, M. / Suárez, A. Dosil / Douglas, L. / Dovbnya, A. / Dreimanis, K. / Dufour, L. / Dujany, G. / Durante, P. / Durham, J. 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Hidalgo / Hill, D. / Hilton, M. / Hopchev, P. H. / Hu, J. / Hu, W. / Huang, W. / Huard, Z. C. / Hulsbergen, W. / Humair, T. / Hushchyn, M. / Hutchcroft, D. / Hynds, D. / Ibis, P. / Idzik, M. / Ilten, P. / Inglessi, A. / Inyakin, A. / Ivshin, K. / Jacobsson, R. / Jakobsen, S. / Jalocha, J. / Jans, E. / Jashal, B. K. / Jawahery, A. / Jiang, F. / John, M. / Johnson, D. / Jones, C. R. / Joram, C. / Jost, B. / Jurik, N. / Kandybei, S. / Karacson, M. / Kariuki, J. M. / Karodia, S. / Kazeev, N. / Kecke, M. / Keizer, F. / Kelsey, M. / Kenzie, M. / Ketel, T. / Khanji, B. / Kharisova, A. / Khurewathanakul, C. / Kim, K. E. / Kirn, T. / Kirsebom, V. S. / Klaver, S. / Klimaszewski, K. / Koliiev, S. / Kolpin, M. / Kondybayeva, A. / Konoplyannikov, A. / Kopecna, R. / Koppenburg, P. / Kostiuk, I. / Kot, O. / Kotriakhova, S. / Kozeiha, M. / Kravchuk, L. / Kreps, M. / Kress, F. / Kretzschmar, S. / Krokovny, P. / Krupa, W. / Krzemien, W. / Kucewicz, W. / Kucharczyk, M. / Kudryavtsev, V. / Kunde, G. J. / Kuonen, A. K. / Kvaratskheliya, T. / Lacarrere, D. / Lafferty, G. / Lai, A. / Lancierini, D. / Lanfranchi, G. / Langenbruch, C. / Latham, T. / Lazzeroni, C. / Gac, R. Le / Leflat, A. / Lefèvre, R. / Lemaitre, F. / Leroy, O. / Lesiak, T. / Leverington, B. / Li, H. / Li, P. -R. / Li, X. / Li, Y. / Li, Z. / Liang, X. / Likhomanenko, T. / Lindner, R. / Ling, P. / Lionetto, F. / Lisovskyi, V. / Liu, G. / Liu, X. / Loh, D. / Loi, A. / Castro, J. Lomba / Longstaff, I. / Lopes, J. H. / Loustau, G. / Lovell, G. H. / Lucchesi, D. / Martinez, M. Lucio / Luo, Y. / Lupato, A. / Luppi, E. / Lupton, O. / Lusiani, A. / Lyu, X. / Ma, R. / Machefert, F. / Maciuc, F. / Macko, V. / Mackowiak, P. / Maddrell-Mander, S. / Maev, O. / Maguire, K. / Maisuzenko, D. / Majewski, M. W. / Malde, S. / Malecki, B. / Malinin, A. / Maltsev, T. / Malygina, H. / Manca, G. / Mancinelli, G. / Marangotto, D. / Maratas, J. / Marchand, J. F. / Marconi, U. / Benito, C. 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H. / Murray, D. / Mödden, A. / Müller, D. / Müller, J. / Müller, K. / Müller, V. / Naik, P. / Nakada, T. / Nandakumar, R. / Nandi, A. / Nanut, T. / Nasteva, I. / Needham, M. / Neri, N. / Neubert, S. / Neufeld, N. / Newcombe, R. / Nguyen, T. D. / Nguyen-Mau, C. / Nieswand, S. / Niet, R. / Nikitin, N. / Nolte, N. S. / O'Hanlon, D. P. / Oblakowska-Mucha, A. / Obraztsov, V. / Ogilvy, S. / Oldeman, R. / Onderwater, C. J. G. / Osborn, J. D. / Ossowska, A. / Goicochea, J. M. Otalora / Ovsiannikova, T. / Owen, P. / Oyanguren, A. / Pais, P. R. / Pajero, T. / Palano, A. / Palutan, M. / Panshin, G. / Papanestis, A. / Pappagallo, M. / Pappalardo, L. L. / Parker, W. / Parkes, C. / Passaleva, G. / Pastore, A. / Patel, M. / Patrignani, C. / Pearce, A. / Pellegrino, A. / Penso, G. / Altarelli, M. Pepe / Perazzini, S. / Pereima, D. / Perret, P. / Pescatore, L. / Petridis, K. / Petrolini, A. / Petrov, A. / Petrucci, S. / Petruzzo, M. / Pietrzyk, B. / Pietrzyk, G. / Pikies, M. / Pili, M. / Pilloni, A. / Pinci, D. / Pinzino, J. / Pisani, F. / Piucci, A. / Placinta, V. / Playfer, S. / Plews, J. / Casasus, M. Plo / Polci, F. / Lener, M. Poli / Poliakova, M. / Poluektov, A. / Polukhina, N. / Polyakov, I. / Polycarpo, E. / Pomery, G. J. / Ponce, S. / Popov, A. / Popov, D. / Poslavskii, S. / Price, E. / Prouve, C. / Pugatch, V. / Navarro, A. Puig / Pullen, H. / Punzi, G. / Qian, W. / Qin, J. / Quagliani, R. / Quintana, B. / Raab, N. V. / Rachwal, B. / Rademacker, J. H. / Rama, M. / Pernas, M. Ramos / Rangel, M. S. / Ratnikov, F. / Raven, G. / Salzgeber, M. Ravonel / Reboud, M. / Redi, F. / Reichert, S. / Reis, A. C. dos / Reiss, F. / Alepuz, C. Remon / Ren, Z. / Renaudin, V. / Ricciardi, S. / Richards, S. / Rinnert, K. / Robbe, P. / Robert, A. / Rodrigues, A. B. / Rodrigues, E. / Lopez, J. A. Rodriguez / Roehrken, M. / Roiser, S. / Rollings, A. / Romanovskiy, V. / Vidal, A. Romero / Roth, J. D. / Rotondo, M. / Rudolph, M. S. / Ruf, T. / Vidal, J. Ruiz / Silva, J. J. Saborido / Sagidova, N. / Saitta, B. / Guimaraes, V. Salustino / Gras, C. Sanchez / Mayordomo, C. Sanchez / Sedes, B. Sanmartin / Santacesaria, R. / Rios, C. Santamarina / Santimaria, M. / Santovetti, E. / Sarpis, G. / Sarti, A. / Satriano, C. / Satta, A. / Saur, M. / Savrina, D. / Schael, S. / Schellenberg, M. / Schiller, M. / Schindler, H. / Schmelling, M. / Schmelzer, T. / Schmidt, B. / Schneider, O. / Schopper, A. / Schreiner, H. F. / Schubiger, M. / Schulte, S. / Schune, M. H. / Schwemmer, R. / Sciascia, B. / Sciubba, A. / Semennikov, A. / Sepulveda, E. S. / Sergi, A. / Serra, N. / Serrano, J. / Sestini, L. / Seuthe, A. / Seyfert, P. / Shapkin, M. / Shears, T. / Shekhtman, L. / Shevchenko, V. / Shmanin, E. / Siddi, B. G. / Coutinho, R. Silva / de Oliveira, L. Silva / Simi, G. / Simone, S. / Skiba, I. / Skidmore, N. / Skwarnicki, T. / Slater, M. W. / Smeaton, J. G. / Smith, E. / Smith, I. T. / Smith, M. / Soares, M. / Lavra, l. Soares / Sokoloff, M. D. / Soler, F. J. P. / De Paula, B. Souza / Spaan, B. / Norella, E. Spadaro / Spradlin, P. / Stagni, F. / Stahl, M. / Stahl, S. / Stefko, P. / Stefkova, S. / Steinkamp, O. / Stemmle, S. / Stenyakin, O. / Stepanova, M. / Stevens, H. / Stocchi, A. / Stone, S. / Stracka, S. / Stramaglia, M. E. / Straticiuc, M. / Straumann, U. / Strokov, S. / Sun, J. / Sun, L. / Sun, Y. / Swientek, K. / Szabelski, A. / Szczepaniak, A. / Szumlak, T. / Szymanski, M. / T'Jampens, S. / Tang, Z. / Tekampe, T. / Tellarini, G. / Teubert, F. / Thomas, E. / van Tilburg, J. / Tilley, M. J. / Tisserand, V. / Tobin, M. / Tolk, S. / Tomassetti, L. / Tonelli, D. / Tou, D. Y. / Tournefier, E. / Traill, M. / Tran, M. T. / Trisovic, A. / Tsaregorodtsev, A. / Tuci, G. / Tully, A. / Tuning, N. / Ukleja, A. / Usachov, A. / Ustyuzhanin, A. / Uwer, U. / Vagner, A. / Vagnoni, V. / Valassi, A. / Valat, S. / Valenti, G. / Van Hecke, H. / Van Hulse, C. B. / Vasiliev, A. / Gomez, R. Vazquez / Regueiro, P. Vazquez / Vecchi, S. / van Veghel, M. / Velthuis, J. J. / Veltri, M. / Venkateswaran, A. / Vernet, M. / Veronesi, M. / Vesterinen, M. / Barbosa, J. V. Viana / Vieira, D. / Diaz, M. Vieites / Viemann, H. / Vilasis-Cardona, X. / Vitkovskiy, A. / Vitti, M. / Volkov, V. / Vollhardt, A. / Bruch, D. Vom / Voneki, B. / Vorobyev, A. / Vorobyev, V. / Voropaev, N. / de Vries, J. A. / Sierra, C. Vázquez / Waldi, R. / Walsh, J. / Wang, J. / Wang, M. / Wang, Y. / Wang, Z. / Ward, D. R. / Wark, H. M. / Watson, N. K. / Websdale, D. / Weiden, A. / Weisser, C. / Whitehead, M. / Wilkinson, G. / Wilkinson, M. / Williams, I. / Williams, M. R. J. / Williams, M. / Williams, T. / Wilson, F. F. / Winn, M. / Wislicki, W. / Witek, M. / Wormser, G. / Wotton, S. A. / Wyllie, K. / Xiao, D. / Xie, Y. / Xing, H. / Xu, A. / Xu, L. / Xu, M. / Xu, Q. / Xu, Z. / Yang, Z. / Yao, Y. / Yeomans, L. E. / Yin, H. / Yu, J. / Yuan, X. / Yushchenko, O. / Zarebski, K. A. / Zavertyaev, M. / Zeng, M. / Zhang, D. / Zhang, L. / Zhang, S. / Zhang, W. C. / Zhang, Y. / Zhelezov, A. / Zheng, Y. / Zhu, X. / Zhukov, V. / Zonneveld, J. B. / Zucchelli, S.

    2019  

    Abstract: ... significance of $7.3\sigma$ in a data sample of ${\Lambda_b^0\to J/\psi p K^-}$ decays which is an order ... at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2019-014.html ... A narrow pentaquark state, $P_c(4312)^+$, decaying to $J/\psi p$ is discovered with a statistical ...

    Abstract A narrow pentaquark state, $P_c(4312)^+$, decaying to $J/\psi p$ is discovered with a statistical significance of $7.3\sigma$ in a data sample of ${\Lambda_b^0\to J/\psi p K^-}$ decays which is an order of magnitude larger than that previously analyzed by the LHCb collaboration. The $P_c(4450)^+$ pentaquark structure formerly reported by LHCb is confirmed and observed to consist of two narrow overlapping peaks, $P_c(4440)^+$ and $P_c(4457)^+$, where the statistical significance of this two-peak interpretation is $5.4\sigma$. Proximity of the $\Sigma_c^+\bar{D}^{0}$ and $\Sigma_c^+\bar{D}^{*0}$ thresholds to the observed narrow peaks suggests that they play an important role in the dynamics of these states.

    Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2019-014.html
    Keywords High Energy Physics - Experiment
    Subject code 612
    Publishing date 2019-04-08
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Book ; Online: Observation of the doubly Cabibbo-suppressed decay $\Xi_{c}^{+}\to p\phi$

    LHCb collaboration / Aaij, R. / Beteta, C. Abellán / Adeva, B. / Adinolfi, M. / Aidala, C. A. / Ajaltouni, Z. / Akar, S. / Albicocco, P. / Albrecht, J. / Alessio, F. / Alexander, M. / Albero, A. Alfonso / Alkhazov, G. / Cartelle, P. Alvarez / Alves Jr, A. A. / Amato, S. / Amerio, S. / Amhis, Y. /
    An, L. / Anderlini, L. / Andreassi, G. / Andreotti, M. / Andrews, J. E. / Archilli, F. / d'Argent, P. / Romeu, J. Arnau / Artamonov, A. / Artuso, M. / Arzymatov, K. / Aslanides, E. / Atzeni, M. / Audurier, B. / Bachmann, S. / Back, J. J. / Baker, S. / Balagura, V. / Baldini, W. / Baranov, A. / Barlow, R. J. / Barrand, G. C. / Barsuk, S. / Barter, W. / Bartolini, M. / Baryshnikov, F. / Batozskaya, V. / Batsukh, B. / Battig, A. / Battista, V. / Bay, A. / Beddow, J. / Bedeschi, F. / Bediaga, I. / Beiter, A. / Bel, L. J. / Belin, S. / Beliy, N. / Bellee, V. / Belloli, N. / Belous, K. / Belyaev, I. / Ben-Haim, E. / Bencivenni, G. / Benson, S. / Beranek, S. / Berezhnoy, A. / Bernet, R. / Berninghoff, D. / Bertholet, E. / Bertolin, A. / Betancourt, C. / Betti, F. / Bettler, M. O. / van Beuzekom, M. / Bezshyiko, Ia. / Bhasin, S. / Bhom, J. / Bifani, S. / Billoir, P. / Birnkraut, A. / Bizzeti, A. / Bjørn, M. / Blago, M. P. / Blake, T. / Blanc, F. / Blusk, S. / Bobulska, D. / Bocci, V. / Garcia, O. Boente / Boettcher, T. / Bondar, A. / Bondar, N. / Borghi, S. / Borisyak, M. / Borsato, M. / Bossu, F. / Boubdir, M. / Bowcock, T. J. V. / Bozzi, C. / Braun, S. / Brodski, M. / Brodzicka, J. / Gonzalo, A. Brossa / Brundu, D. / Buchanan, E. / Buonaura, A. / Burr, C. / Bursche, A. / Buytaert, J. / Byczynski, W. / Cadeddu, S. / Cai, H. / Calabrese, R. / Calladine, R. / Calvi, M. / Gomez, M. Calvo / Camboni, A. / Campana, P. / Perez, D. H. Campora / Capriotti, L. / Carbone, A. / Carboni, G. / Cardinale, R. / Cardini, A. / Carniti, P. / Carson, L. / Akiba, K. Carvalho / Casse, G. / Cassina, L. / Cattaneo, M. / Cavallero, G. / Cenci, R. / Chamont, D. / Chapman, M. G. / Charles, M. / Charpentier, Ph. / Chatzikonstantinidis, G. / Chefdeville, M. / Chekalina, V. / Chen, C. / Chen, S. / Chitic, S. -G. / Chobanova, V. / Chrzaszcz, M. / Chubykin, A. / Ciambrone, P. / Vidal, X. 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C. / Zhang, Y. / Zhelezov, A. / Zheng, Y. / Zhu, X. / Zhukov, V. / Zonneveld, J. B. / Zucchelli, S.

    2019  

    Abstract: The doubly Cabibbo-suppressed decay $\Xi_{c}^{+}\to p\phi$ with $\phi\to K^{+}K^{-}$ is observed ... the decay $\Xi_{c}^{+}\to p\phi$ and the singly Cabibbo-suppressed decay $\Xi_{c}^{+}\to pK^{-}\pi^{+}$ is ... measured to be \begin{equation*} \frac{\mathcal{B}(\Xi_{c}^{+}\to p\phi)}{\mathcal{B}(\Xi_{c}^{+}\to pK^ ...

    Abstract The doubly Cabibbo-suppressed decay $\Xi_{c}^{+}\to p\phi$ with $\phi\to K^{+}K^{-}$ is observed for the first time, with a statistical significance of more than fifteen standard deviations. The data sample used in this analysis corresponds to an integrated luminosity of 2 fb$^{-1}$ recorded with the LHCb detector in $pp$ collisions at a centre-of-mass energy of 8 TeV. The ratio of branching fractions between the decay $\Xi_{c}^{+}\to p\phi$ and the singly Cabibbo-suppressed decay $\Xi_{c}^{+}\to pK^{-}\pi^{+}$ is measured to be \begin{equation*} \frac{\mathcal{B}(\Xi_{c}^{+}\to p\phi)}{\mathcal{B}(\Xi_{c}^{+}\to pK^{-}\pi^{+})} = (19.8 \pm 0.7 \pm 0.9 \pm 0.2) \times 10^{-3}, \end{equation*} where the first uncertainty is statistical, the second systematic and the third due to the knowledge of the $\phi\to K^{+}K^{-}$ branching fraction.

    Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2018-040.html
    Keywords High Energy Physics - Experiment
    Subject code 612
    Publishing date 2019-01-18
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Book ; Online: Searches for $B^{0}_{(s)} \rightarrow J/{\psi} p \overline{p}$ and $B^{+} \to J/{\psi} p \overline{p} {\pi}^{+}$ decays

    LHCb collaboration / Aaij, R. / Adeva, B. / Adinolfi, M. / Adrover, C. / Affolder, A. / Ajaltouni, Z. / Albrecht, J. / Alessio, F. / Alexander, M. / Ali, S. / Alkhazov, G. / Cartelle, P. Alvarez / Alves Jr, A. A. / Amato, S. / Amerio, S. / Amhis, Y. / Anderlini, L. / Anderson, J. /
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Calvo / Camboni, A. / Campana, P. / Perez, D. Campora / Carbone, A. / Carboni, G. / Cardinale, R. / Cardini, A. / Carranza-Mejia, H. / Carson, L. / Akiba, K. Carvalho / Casse, G. / Garcia, L. Castillo / Cattaneo, M. / Cauet, Ch. / Cenci, R. / Charles, M. / Charpentier, Ph. / Chen, P. / Chiapolini, N. / Chrzaszcz, M. / Ciba, K. / Vidal, X. Cid / Ciezarek, G. / Clarke, P. E. L. / Clemencic, M. / Cliff, H. V. / Closier, J. / Coca, C. / Coco, V. / Cogan, J. / Cogneras, E. / Collins, P. / Comerma-Montells, A. / Contu, A. / Cook, A. / Coombes, M. / Coquereau, S. / Corti, G. / Couturier, B. / Cowan, G. A. / Craik, D. C. / Cunliffe, S. / Currie, R. / D'Ambrosio, C. / David, P. / David, P. N. Y. / Davis, A. / De Bonis, I. / De Bruyn, K. / De Capua, S. / De Cian, M. / De Miranda, J. 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    2013  

    Abstract: The results of searches for $B^{0}_{(s)} \rightarrow J/{\psi} p \overline{p}$ and $B^{+} \to J ... psi} p \overline{p} {\pi}^{+}$ decays are reported. The analysis is based on a data sample ... An excess with 2.8$\,\sigma$ significance is seen for the decay $B^{0}_{s} \to J/{\psi} p \overline{p}$ and ...

    Abstract The results of searches for $B^{0}_{(s)} \rightarrow J/{\psi} p \overline{p}$ and $B^{+} \to J/{\psi} p \overline{p} {\pi}^{+}$ decays are reported. The analysis is based on a data sample, corresponding to an integrated luminosity of 1.0 fb$^{-1}$ of $pp$ collisions, collected with the LHCb detector. An excess with 2.8$\,\sigma$ significance is seen for the decay $B^{0}_{s} \to J/{\psi} p \overline{p}$ and an upper limit on the branching fraction is set at the 90 % confidence level: ${\cal B}(B^{0}_{s} \to J/{\psi} p \overline{p}) < 4.8 \times 10^{-6}$, which is the first such limit. No significant signals are seen for $B^{0} \to J/{\psi} p \overline{p}$ and $B^{+} \to J/{\psi} p \overline{p} {\pi}^{+}$ decays, for which the corresponding limits are set: ${\cal{B}}(B^{0} \to J/{\psi} p \overline{p}) < 5.2 \times 10^{-7}$, which significantly improves the existing limit; and ${\cal{B}}(B^{+} \to J/{\psi} p \overline{p} {\pi}^{+}) < 5.0 \times 10^{-7}$, which is the first limit on this branching fraction.

    Comment: 12 pages, 3 figures
    Keywords High Energy Physics - Experiment
    Subject code 612
    Publishing date 2013-06-19
    Publishing country us
    Document type Book ; Online
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  10. Book ; Online: Measurement of the nuclear modification factor and prompt charged particle production in $p\mathrm{Pb}$ and $pp$ collisions at $\sqrt{s_{\scriptscriptstyle\mathrm{NN}}}=5\,\mathrm{TeV}$

    LHCb collaboration / Aaij, R. / Beteta, C. Abellán / Ackernley, T. / Adeva, B. / Adinolfi, M. / Afsharnia, H. / Aidala, C. A. / Aiola, S. / Ajaltouni, Z. / Akar, S. / Albrecht, J. / Alessio, F. / Alexander, M. / Albero, A. Alfonso / Aliouche, Z. / Alkhazov, G. / Cartelle, P. Alvarez / Amato, S. /
    Amey, J. L. / Amhis, Y. / An, L. / Anderlini, L. / Andreianov, A. / Andreotti, M. / Archilli, F. / Artamonov, A. / Artuso, M. / Arzymatov, K. / Aslanides, E. / Atzeni, M. / Audurier, B. / Bachmann, S. / Bachmayer, M. / Back, J. J. / Rodriguez, P. Baladron / Balagura, V. / Baldini, W. / Leite, J. Baptista / Barlow, R. J. / Barsuk, S. / Barter, W. / Bartolini, M. / Baryshnikov, F. / Basels, J. M. / Bassi, G. / Batsukh, B. / Battig, A. / Bay, A. / Becker, M.

    2021  

    Abstract: ... <4.8}$ (forward region), and $p_{\mathrm{T}}$ between ${0.2<p_{\mathrm{T}}<8.0\,\mathrm{GeV}/c ... ch/lhcbproject/Publications/p/LHCb-PAPER-2021-015.html (LHCb public pages) ... TeV}}$ is studied at LHCb as a function of pseudorapidity ($\eta$) and transverse momentum ($p ...

    Abstract The production of prompt charged particles in proton-lead collisions and in proton-proton collisions at the nucleon-nucleon centre-of-mass energy ${\sqrt{s_{\scriptscriptstyle\mathrm{NN}}}=5\,\mathrm{TeV}}$ is studied at LHCb as a function of pseudorapidity ($\eta$) and transverse momentum ($p_{\mathrm{T}}$) with respect to the proton beam direction. The nuclear modification factor for charged particles is determined as a function of $\eta$ between ${-4.8<\eta<-2.5}$ (backward region) and ${2.0<\eta<4.8}$ (forward region), and $p_{\mathrm{T}}$ between ${0.2<p_{\mathrm{T}}<8.0\,\mathrm{GeV}/c}$. The results show a suppression of charged particle production in proton-lead collisions relative to proton-proton collisions in the forward region and an enhancement in the backward region for $p_{\mathrm{T}}$ larger than $1.5\,\mathrm{GeV}/c$. This measurement constrains nuclear PDFs and saturation models at previously unexplored values of the parton momentum fraction down to $10^{-6}$.

    Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-015.html (LHCb public pages)
    Keywords High Energy Physics - Experiment ; Nuclear Experiment
    Subject code 306
    Publishing date 2021-08-30
    Publishing country us
    Document type Book ; Online
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