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Article ; Online: A method to reproduce alpha-particle spectra measured with semiconductor detectors.

Timón, A Fernández / Vargas, M Jurado / Sánchez, A Martín

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine

2010 Volume 68, Issue 4-5, Page(s) 941–945

Abstract: A method is proposed to reproduce alpha-particle spectra measured with silicon detectors, combining analytical and computer simulation techniques. The procedure includes the use of the Monte Carlo method to simulate the tracks of alpha-particles within ... ...

Abstract	A method is proposed to reproduce alpha-particle spectra measured with silicon detectors, combining analytical and computer simulation techniques. The procedure includes the use of the Monte Carlo method to simulate the tracks of alpha-particles within the source and in the detector entrance window. The alpha-particle spectrum is finally obtained by the convolution of this simulated distribution and the theoretical distributions representing the contributions of the alpha-particle spectrometer to the spectrum. Experimental spectra from (233)U and (241)Am sources were compared with the predictions given by the proposed procedure, showing good agreement. The proposed method can be an important aid for the analysis and deconvolution of complex alpha-particle spectra.
MeSH term(s)	Algorithms ; Alpha Particles ; Computer-Aided Design ; Equipment Design ; Equipment Failure Analysis ; Monte Carlo Method ; Radiometry/instrumentation ; Reproducibility of Results ; Semiconductors ; Sensitivity and Specificity ; Spectrum Analysis/instrumentation
Language	English
Publishing date	2010-04
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	1142596-9
ISSN	1872-9800 ; 0883-2889 ; 0969-8043
ISSN (online)	1872-9800
ISSN	0883-2889 ; 0969-8043
DOI	10.1016/j.apradiso.2009.10.046
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Article ; Online: Radon in workplaces in Extremadura (Spain).

Sánchez, A Martín / Pérez, J de la Torre / Sánchez, A B Ruano / Correa, F L Naranjo

Journal of environmental radioactivity

2012 Volume 107, Page(s) 86–91

Abstract: Indoor radon measurements are usually associated with housing. However, a typical person spends about one-third of the day at their workplace. A survey was made of radon levels in workplaces in Extremadura (Spain). More than 200 measurements were ... ...

Abstract	Indoor radon measurements are usually associated with housing. However, a typical person spends about one-third of the day at their workplace. A survey was made of radon levels in workplaces in Extremadura (Spain). More than 200 measurements were performed in some 130 firms and organizations of different sectors (urban wellness centres, spas, caves, mines, water management facilities, underground carparks, wine cellars, museums, etc.). Activated charcoal canisters and track detectors were used for sampling. The results indicated the importance of performing this type of measurement because the exposure of workers can reach high values in some cases.
MeSH term(s)	Occupational Exposure ; Radiation Monitoring ; Radon/analysis ; Spain ; Workplace
Chemical Substances	Radon (Q74S4N8N1G)
Language	English
Publishing date	2012-05
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	1483112-0
ISSN	1879-1700 ; 0265-931X
ISSN (online)	1879-1700
ISSN	0265-931X
DOI	10.1016/j.jenvrad.2012.01.009
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Article ; Online: Influence of source composition and particle energy on the determination of gross alpha activity.

Timón, A Fernández / Vargas, M Jurado / Sánchez, A B Ruano / Pérez, J de la Torre / Sánchez, A Martín

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine

2013 Volume 82, Page(s) 376–381

Abstract: The influence of different source compositions and α-particle energies on the detection efficiency of a gas-flow proportional counter was examined using experimental measurements and Monte Carlo simulations. Efficiency variation with alpha-particle ... ...

Abstract	The influence of different source compositions and α-particle energies on the detection efficiency of a gas-flow proportional counter was examined using experimental measurements and Monte Carlo simulations. Efficiency variation with alpha-particle energy was very marked, being less significant with the substrate composition. These results show that the determination of gross alpha activity in an unknown sample must be carried out very carefully in order to give a correct estimation of its activity.
Language	English
Publishing date	2013-12
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	1142596-9
ISSN	1872-9800 ; 0883-2889 ; 0969-8043
ISSN (online)	1872-9800
ISSN	0883-2889 ; 0969-8043
DOI	10.1016/j.apradiso.2013.10.001
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Article ; Online: Alpha-particle emission probabilities in the decay of 240Pu.

Sibbens, G / Pommé, S / Altzitzoglou, T / García-Toraño, E / Janssen, H / Dersch, R / Ott, O / Sánchez, A Martín / Montero, M P Rubio / Loidl, M / Coron, N / de Marcillac, P / Semkow, T M

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine

2010 Volume 68, Issue 7-8, Page(s) 1459–66; discussion 1466

Abstract: Sources of enriched (240)Pu were prepared by vacuum evaporation on quartz substrates. High-resolution alpha-particle spectrometry of (240)Pu was performed with high statistical accuracy using silicon detectors and with low statistical accuracy using a ... ...

Abstract	Sources of enriched (240)Pu were prepared by vacuum evaporation on quartz substrates. High-resolution alpha-particle spectrometry of (240)Pu was performed with high statistical accuracy using silicon detectors and with low statistical accuracy using a bolometer. The alpha-particle emission probabilities of six transitions were derived from the spectra and compared with literature values. Additionally, some alpha-particle emission probabilities were derived from gamma-ray intensity measurements with a high-purity germanium detector. The alpha-particle emission probabilities of the three main transitions at 5168.1, 5123.6 and 5021.2 keV were derived from seven aggregate spectra analysed with five different fit functions and the results were compatible with evaluated data. Two additional weak peaks at 4863.5 and 4492.0 keV were fitted separately, using the exponential of a polynomial function to represent the underlying tailing of the larger peaks. The peak at 4655 keV could not be detected by alpha-particle spectrometry, while gamma-ray spectrometry confirms that its intensity is much lower than expected from literature.
Language	English
Publishing date	2010-07
Publishing country	England
Document type	Journal Article
ZDB-ID	1142596-9
ISSN	1872-9800 ; 0883-2889 ; 0969-8043
ISSN (online)	1872-9800
ISSN	0883-2889 ; 0969-8043
DOI	10.1016/j.apradiso.2009.12.006
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Article: Measurement of the [Formula: see text] production cross-section in proton-proton collisions via the decay [Formula: see text].

Aaij, R / Beteta, C Abellán / Adeva, B / Adinolfi, M / Affolder, A / Ajaltouni, Z / Akar, S / Albrecht, J / Alessio, F / Alexander, M / Ali, S / Alkhazov, G / Alvarez Cartelle, P / Alves, A A / Amato, S / Amerio, S / Amhis, Y / An, L / Anderlini, L /

Anderson, J / Andreassen, R / Andreotti, M / Andrews, J E / Appleby, R B / Aquines Gutierrez, O / Archilli, F / Artamonov, A / Artuso, M / Aslanides, E / Auriemma, G / Baalouch, M / Bachmann, S / Back, J J / Badalov, A / Baesso, C / Baldini, W / Barlow, R J / Barschel, C / Barsuk, S / Barter, W / Batozskaya, V / Battista, V / Bay, A / Beaucourt, L / Beddow, J / Bedeschi, F / Bediaga, I / Belogurov, S / Belous, K / Belyaev, I / Ben-Haim, E / Bencivenni, G / Benson, S / Benton, J / Berezhnoy, A / Bernet, R / Bettler, M-O / van Beuzekom, M / Bien, A / Bifani, S / Bird, T / Bizzeti, A / Bjørnstad, P M / Blake, T / Blanc, F / Blouw, J / Blusk, S / Bocci, V / Bondar, A / Bondar, N / Bonivento, W / Borghi, S / Borgia, A / Borsato, M / Bowcock, T J V / Bowen, E / Bozzi, C / Brambach, T / Bressieux, J / Brett, D / Britsch, M / Britton, T / Brodzicka, J / Brook, N H / Brown, H / Bursche, A / Busetto, G / Buytaert, J / Cadeddu, S / Calabrese, R / Calvi, M / Calvo Gomez, M / Campana, P / Campora Perez, D / Carbone, A / Carboni, G / Cardinale, R / Cardini, A / Carson, L / Carvalho Akiba, K / Casse, G / Cassina, L / Castillo Garcia, L / Cattaneo, M / Cauet, Ch / Cenci, R / Charles, M / Charpentier, Ph / Chefdeville, M / Chen, S / Cheung, S-F / Chiapolini, N / Chrzaszcz, M / Ciba, K / Cid Vidal, X / Ciezarek, G / Clarke, P E L / Clemencic, M / Cliff, H V / Closier, J / Coco, V / Cogan, J / Cogneras, E / Cogoni, V / Cojocariu, L / Collins, P / Comerma-Montells, A / Contu, A / Cook, A / Coombes, M / Coquereau, S / Corti, G / Corvo, M / Counts, I / Couturier, B / Cowan, G A / Craik, D C / Cruz Torres, M / Cunliffe, S / Currie, R / D'Ambrosio, C / Dalseno, J / David, P / David, P N Y / Davis, A / De Bruyn, K / De Capua, S / De Cian, M / De Miranda, J M / De Paula, L / De Silva, W / De Simone, P / Decamp, D / Deckenhoff, M / Del Buono, L / Déléage, N / Derkach, D / Deschamps, O / Dettori, F / Di Canto, A / Dijkstra, H / Donleavy, S / Dordei, F / Dorigo, M / Dosil Suárez, A / Dossett, D / Dovbnya, A / Dreimanis, K / Dujany, G / Dupertuis, F / Durante, P / Dzhelyadin, R / Dziurda, A / Dzyuba, A / Easo, S / Egede, U / Egorychev, V / Eidelman, S / Eisenhardt, S / Eitschberger, U / Ekelhof, R / Eklund, L / El Rifai, I / Elena, E / Elsasser, Ch / Ely, S / Esen, S / Evans, H-M / Evans, T / Falabella, A / Färber, C / Farinelli, C / Farley, N / Farry, S / Fay, R F / Ferguson, D / Fernandez Albor, V / Ferreira Rodrigues, F / Ferro-Luzzi, M / Filippov, S / Fiore, M / Fiorini, M / Firlej, M / Fitzpatrick, C / Fiutowski, T / Fol, P / Fontana, M / Fontanelli, F / Forty, R / Francisco, O / Frank, M / Frei, C / Frosini, M / Fu, J / Furfaro, E / Gallas Torreira, A / Galli, D / Gallorini, S / Gambetta, S / Gandelman, M / Gandini, P / Gao, Y / García Pardiñas, J / Garofoli, J / Garra Tico, J / Garrido, L / Gaspar, C / Gauld, R / Gavardi, L / Gavrilov, G / Geraci, A / Gersabeck, E / Gersabeck, M / Gershon, T / Ghez, Ph / Gianelle, A / Gianì, S / Gibson, V / Giubega, L / Gligorov, V V / Göbel, C / Golubkov, D / Golutvin, A / Gomes, A / Gotti, C / Grabalosa Gándara, M / Graciani Diaz, R / Granado Cardoso, L A / Graugés, E / Graziani, G / Grecu, A / Greening, E / Gregson, S / Griffith, P / Grillo, L / Grünberg, O / Gui, B / Gushchin, E / Guz, Yu / Gys, T / Hadjivasiliou, C / Haefeli, G / Haen, C / Haines, S C / Hall, S / Hamilton, B / Hampson, T / Han, X / Hansmann-Menzemer, S / Harnew, N / Harnew, S T / Harrison, J / He, J / Head, T / Heijne, V / Hennessy, K / Henrard, P / Henry, L / Hernando Morata, J A / van Herwijnen, E / Heß, M / Hicheur, A / Hill, D / Hoballah, M / Hombach, C / Hulsbergen, W / Hunt, P / Hussain, N / Hutchcroft, D / Hynds, D / Idzik, M / Ilten, P / Jacobsson, R / Jaeger, A / Jalocha, J / Jans, E / Jaton, P / Jawahery, A / Jing, F / John, M / Johnson, D / Jones, C R / Joram, C / Jost, B / Jurik, N / Kaballo, M / Kandybei, S / Kanso, W / Karacson, M / Karbach, T M / Karodia, S / Kelsey, M / Kenyon, I R / Ketel, T / Khanji, B / Khurewathanakul, C / Klaver, S / Klimaszewski, K / Kochebina, O / Kolpin, M / Komarov, I / Koopman, R F / Koppenburg, P / Korolev, M / Kozlinskiy, A / Kravchuk, L / Kreplin, K / Kreps, M / Krocker, G / Krokovny, P / Kruse, F / Kucewicz, W / Kucharczyk, M / Kudryavtsev, V / Kurek, K / Kvaratskheliya, T / La Thi, V N / Lacarrere, D / Lafferty, G / Lai, A / Lambert, D / Lambert, R W / Lanfranchi, G / Langenbruch, C / Langhans, B / Latham, T / Lazzeroni, C / Le Gac, R / van Leerdam, J / Lees, J-P / Lefèvre, R / Leflat, A / Lefrançois, J / Leo, S / Leroy, O / Lesiak, T / Leverington, B / Li, Y / Likhomanenko, T / Liles, M / Lindner, R / Linn, C / Lionetto, F / Liu, B / Lohn, S / Longstaff, I / Lopes, J H / Lopez-March, N / Lowdon, P / Lucchesi, D / Luo, H / Lupato, A / Luppi, E / Lupton, O / Machefert, F / Machikhiliyan, I V / Maciuc, F / Maev, O / Malde, S / Malinin, A / Manca, G / Mancinelli, G / Mapelli, A / Maratas, J / Marchand, J F / Marconi, U / Marin Benito, C / Marino, P / Märki, R / Marks, J / Martellotti, G / Martens, A / Sánchez, A Martín / Martinelli, M / Martinez Santos, D / Martinez Vidal, F / Martins Tostes, D / Massafferri, A / Matev, R / Mathe, Z / Matteuzzi, C / Mazurov, A / McCann, M / McCarthy, J / McNab, A / McNulty, R / McSkelly, B / Meadows, B / Meier, F / Meissner, M / Merk, M / Milanes, D A / Minard, M-N / Moggi, N / Molina Rodriguez, J / Monteil, S / Morandin, M / Morawski, P / Mordà, A / Morello, M J / Moron, J / Morris, A-B / Mountain, R / Muheim, F / Müller, K / Mussini, M / Muster, B / Naik, P / Nakada, T / Nandakumar, R / Nasteva, I / Needham, M / Neri, N / Neubert, S / Neufeld, N / Neuner, M / Nguyen, A D / Nguyen, T D / Nguyen-Mau, C / Nicol, M / Niess, V / Niet, R / Nikitin, N / Nikodem, T / Novoselov, A / O'Hanlon, D P / Oblakowska-Mucha, A / Obraztsov, V / Oggero, S / Ogilvy, S / Okhrimenko, O / Oldeman, R / Onderwater, G / Orlandea, M / Otalora Goicochea, J M / Owen, P / Oyanguren, A / Pal, B K / Palano, A / Palombo, F / Palutan, M / Panman, J / Papanestis, A / Pappagallo, M / Pappalardo, L L / Parkes, C / Parkinson, C J / Passaleva, G / Patel, G D / Patel, M / Patrignani, C / Alvarez, A Pazos / Pearce, A / Pellegrino, A / Pepe Altarelli, M / Perazzini, S / Trigo, E Perez / Perret, P / Perrin-Terrin, M / Pescatore, L / Pesen, E / Petridis, K / Petrolini, A / Picatoste Olloqui, E / Pietrzyk, B / Pilař, T / Pinci, D / Pistone, A / Playfer, S / Plo Casasus, M / Polci, F / Poluektov, A / Polycarpo, E / Popov, A / Popov, D / Popovici, B / Potterat, C / Price, E / Price, J D / Prisciandaro, J / Pritchard, A / Prouve, C / Pugatch, V / Puig Navarro, A / Punzi, G / Qian, W / Rachwal, B / Rademacker, J H / Rakotomiaramanana, B / Rama, M / Rangel, M S / Raniuk, I / Rauschmayr, N / Raven, G / Redi, F / Reichert, S / Reid, M M / Dos Reis, A C / Ricciardi, S / Richards, S / Rihl, M / Rinnert, K / Rives Molina, V / Robbe, P / Rodrigues, A B / Rodrigues, E / Rodriguez Perez, P / Roiser, S / Romanovsky, V / Romero Vidal, A / Rotondo, M / Rouvinet, J / Ruf, T / Ruiz, H / Ruiz Valls, P / Saborido Silva, J J / Sagidova, N / Sail, P / Saitta, B / Salustino Guimaraes, V / Sanchez Mayordomo, C / Sanmartin Sedes, B / Santacesaria, R / Santamarina Rios, C / Santovetti, E / Sarti, A / Satriano, C / Satta, A / Saunders, D M / Savrie, M / Savrina, D / Schiller, M / Schindler, H / Schlupp, M / Schmelling, M / Schmidt, B / Schneider, O / Schopper, A / Schune, M-H / Schwemmer, R / Sciascia, B / Sciubba, A / Seco, M / Semennikov, A / Sepp, I / Serra, N / Serrano, J / Sestini, L / Seyfert, P / Shapkin, M / Shapoval, I / Shcheglov, Y / Shears, T / Shekhtman, L / Shevchenko, V / Shires, A / Silva Coutinho, R / Simi, G / Sirendi, M / Skidmore, N / Skwarnicki, T / Smith, N A / Smith, E / Smith, J / Smith, M / Snoek, H / Sokoloff, M D / Soler, F J P / Soomro, F / Souza, D / De Paula, B Souza / Spaan, B / Sparkes, A / Spradlin, P / Sridharan, S / Stagni, F / Stahl, M / Stahl, S / Steinkamp, O / Stenyakin, O / Stevenson, S / Stoica, S / Stone, S / Storaci, B / Stracka, S / Straticiuc, M / Straumann, U / Stroili, R / Subbiah, V K / Sun, L / Sutcliffe, W / Swientek, K / Swientek, S / Syropoulos, V / Szczekowski, M / Szczypka, P / Szilard, D / Szumlak, T / T'Jampens, S / Teklishyn, M / Tellarini, G / Teubert, F / Thomas, C / Thomas, E / van Tilburg, J / Tisserand, V / Tobin, M / Tolk, S / Tomassetti, L / Tonelli, D / Topp-Joergensen, S / Torr, N / Tournefier, E / Tourneur, S / Tran, M T / Tresch, M / Tsaregorodtsev, A / Tsopelas, P / Tuning, N / Ubeda Garcia, M / Ukleja, A / Ustyuzhanin, A / Uwer, U / Vacca, C / Vagnoni, V / Valenti, G / Vallier, A / Vazquez Gomez, R / Vazquez Regueiro, P / Vázquez Sierra, C / Vecchi, S / Velthuis, J J / Veltri, M / Veneziano, G / Vesterinen, M / Viaud, B / Vieira, D / Vieites Diaz, M / Vilasis-Cardona, X / Vollhardt, A / Volyanskyy, D / Voong, D / Vorobyev, A / Vorobyev, V / Voß, C / Voss, H / de Vries, J A / Waldi, R / Wallace, C / Wallace, R / Walsh, J / Wandernoth, S / Wang, J / Ward, D R / Watson, N K / Websdale, D / Whitehead, M / Wicht, J / Wiedner, D / Wilkinson, G / Williams, M P / Williams, M / Wilschut, H W / Wilson, F F / Wimberley, J / Wishahi, J / Wislicki, W / Witek, M / Wormser, G / Wotton, S A / Wright, S / Wyllie, K / Xie, Y / Xing, Z / Xu, Z / Yang, Z / Yuan, X / Yushchenko, O / Zangoli, M / Zavertyaev, M / Zhang, L / Zhang, W C / Zhang, Y / Zhelezov, A / Zhokhov, A / Zhong, L / Zvyagin, A

The European physical journal. C, Particles and fields

2015 Volume 75, Issue 7, Page(s) 311

Abstract: The production of the [Formula: see text] state in proton-proton collisions is probed via its decay to the [Formula: see text] final state with the LHCb detector, in the rapidity range [Formula: see text] and in the meson transverse-momentum range [ ... ...

Abstract	The production of the [Formula: see text] state in proton-proton collisions is probed via its decay to the [Formula: see text] final state with the LHCb detector, in the rapidity range [Formula: see text] and in the meson transverse-momentum range [Formula: see text]. The cross-section for prompt production of [Formula: see text] mesons relative to the prompt [Formula: see text] cross-section is measured, for the first time, to be [Formula: see text] at a centre-of-mass energy [Formula: see text] using data corresponding to an integrated luminosity of 0.7 fb[Formula: see text], and [Formula: see text] at [Formula: see text] using 2.0 fb[Formula: see text]. The uncertainties quoted are, in order, statistical, systematic, and that on the ratio of branching fractions of the [Formula: see text] and [Formula: see text] decays to the [Formula: see text] final state. In addition, the inclusive branching fraction of [Formula: see text]-hadron decays into [Formula: see text] mesons is measured, for the first time, to be [Formula: see text], where the third uncertainty includes also the uncertainty on the [Formula: see text] inclusive branching fraction from [Formula: see text]-hadron decays. The difference between the [Formula: see text] and [Formula: see text] meson masses is determined to be [Formula: see text].
Language	English
Publishing date	2015-07-04
Publishing country	France
Document type	Journal Article
ZDB-ID	1459069-4
ISSN	1434-6052 ; 1434-6044
ISSN (online)	1434-6052
ISSN	1434-6044
DOI	10.1140/epjc/s10052-015-3502-x
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Article ; Online: Determination of f(s)/f(d) for 7 TeV pp collisions and measurement of the B0→D-K+ branching fraction.

Aaij, R / Adeva, B / Adinolfi, M / Adrover, C / Affolder, A / Ajaltouni, Z / Albrecht, J / Alessio, F / Alexander, M / Alkhazov, G / Alvarez Cartelle, P / Alves, A A / Amato, S / Amhis, Y / Amoraal, J / Anderson, J / Appleby, R B / Gutierrez, O Aquines / Arrabito, L /

Artamonov, A / Artuso, M / Aslanides, E / Auriemma, G / Bachmann, S / Back, J J / Bailey, D S / Balagura, V / Baldini, W / Barlow, R J / Barschel, C / Barsuk, S / Barter, W / Bates, A / Bauer, C / Bauer, Th / Bay, A / Bediaga, I / Belous, K / Belyaev, I / Ben-Haim, E / Benayoun, M / Bencivenni, G / Benson, S / Benton, J / Bernet, R / Bettler, M-O / van Beuzekom, M / Bien, A / Bifani, S / Bizzeti, A / Bjørnstad, P M / Blake, T / Blanc, F / Blanks, C / Blouw, J / Blusk, S / Bobrov, A / Bocci, V / Bondar, A / Bondar, N / Bonivento, W / Borghi, S / Borgia, A / Bowcock, T J V / Bozzi, C / Brambach, T / van den Brand, J / Bressieux, J / Brisbane, S / Britsch, M / Britton, T / Brook, N H / Büchler-Germann, A / Bursche, A / Buytaert, J / Cadeddu, S / Carvajal, J M Caicedo / Callot, O / Calvi, M / Gomez, M Calvo / Camboni, A / Campana, P / Carbone, A / Carboni, G / Cardinale, R / Cardini, A / Carson, L / Akiba, K Carvalho / Casse, G / Cattaneo, M / Charles, M / Charpentier, Ph / Chiapolini, N / Vidal, X Cid / Clarke, P E L / Clemencic, M / Cliff, H V / Closier, J / Coca, C / Coco, V / Cogan, J / Collins, P / Constantin, F / Conti, G / Contu, A / Cook, A / Coombes, M / Corti, G / Cowan, G A / Currie, R / D'Almagne, B / D'Ambrosio, C / David, P / David, P N Y / De Bonis, I / De Capua, S / De Cian, M / De Lorenzi, F / De Miranda, J M / De Paula, L / De Simone, P / Decamp, D / Deckenhoff, M / Degaudenzi, H / Deissenroth, M / Del Buono, L / Deplano, C / Deschamps, O / Dettori, F / Dickens, J / Dijkstra, H / Batista, P Diniz / Dossett, D / Dovbnya, A / Dupertuis, F / Dzhelyadin, R / Eames, C / Easo, S / Egede, U / Egorychev, V / Eidelman, S / van Eijk, D / Eisele, F / Eisenhardt, S / Ekelhof, R / Eklund, L / Elsasser, Ch / d'Enterria, D G / Pereira, D Esperante / Estève, L / Falabella, A / Fanchini, E / Färber, C / Fardell, G / Farinelli, C / Farry, S / Fave, V / Albor, V Fernandez / Ferro-Luzzi, M / Filippov, S / Fitzpatrick, C / Fontana, M / Fontanelli, F / Forty, R / Frank, M / 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Physical review letters

2011 Volume 107, Issue 21, Page(s) 211801

Abstract: The relative abundance of the three decay modes B(0)→D(-)K(+), B(0)→D(-)π(+), and B(s)(0)→D(s)(-)π(+) produced in 7 TeV pp collisions at the LHC is determined from data corresponding to an integrated luminosity of 35 pb(-1). The branching fraction of B(0) ...

Abstract	The relative abundance of the three decay modes B(0)→D(-)K(+), B(0)→D(-)π(+), and B(s)(0)→D(s)(-)π(+) produced in 7 TeV pp collisions at the LHC is determined from data corresponding to an integrated luminosity of 35 pb(-1). The branching fraction of B(0)→D(-)K(+) is found to be B(B(0)→D(-)K(+)) = (2.01 ± 0.18(stat) ± 0.14(syst)) × 10(-4). The ratio of fragmentation fractions f(s)/f(d) is determined through the relative abundance of B(s)(0)→D(s)(-)π(+) to B(0)→D(-)K(+) and B(0)→D(-)π(+), leading to f(s)/f(d) = 0.253 ± 0.017 ± 0.017 ± 0.020, where the uncertainties are statistical, systematic, and theoretical, respectively.
Language	English
Publishing date	2011-11-18
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.107.211801
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Book ; Online: Measurement of the CKM angle \gamma using B^\pm --> D K^\pm with D-->K_S\pi^+\pi^-, K_SK^+K^- decays

LHCb collaboration / Aaij, R. / Adeva, B. / Adinolfi, M. / Affolder, A. / 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. /

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Perez / Perret, P. / Perrin-Terrin, M. / Pescatore, L. / Pesen, E. / Petridis, K. / Petrolini, A. / Olloqui, E. Picatoste / Pietrzyk, B. / Pilař, T. / Pinci, D. / Pistone, A. / Playfer, S. / Casasus, M. Plo / Polci, F. / Poluektov, A. / Polycarpo, E. / Popov, A. / Popov, D. / Popovici, B. / Potterat, C. / Price, E. / Prisciandaro, J. / Pritchard, A. / Prouve, C. / Pugatch, V. / Navarro, A. Puig / Punzi, G. / Qian, W. / Rachwal, B. / Rademacker, J. H. / Rakotomiaramanana, B. / Rama, M. / Rangel, M. S. / Raniuk, I. / Rauschmayr, N. / Raven, G. / Reichert, S. / Reid, M. M. / Reis, A. C. dos / Ricciardi, S. / Richards, S. / Rihl, M. / Rinnert, K. / Molina, V. Rives / Romero, D. A. Roa / Robbe, P. / Rodrigues, A. B. / Rodrigues, E. / Perez, P. Rodriguez / Roiser, S. / Romanovsky, V. / Vidal, A. Romero / Rotondo, M. / Rouvinet, J. / Ruf, T. / Ruiz, H. / Valls, P. Ruiz / Silva, J. J. Saborido / Sagidova, N. / Sail, P. / Saitta, B. / Guimaraes, V. Salustino / Mayordomo, C. Sanchez / Sedes, B. Sanmartin / Santacesaria, R. / Rios, C. Santamarina / Santovetti, E. / Sarti, A. / Satriano, C. / Satta, A. / Saunders, D. M. / Savrie, M. / Savrina, D. / Schiller, M. / Schindler, H. / Schlupp, M. / Schmelling, M. / Schmidt, B. / Schneider, O. / Schopper, A. / Schune, M. -H. / Schwemmer, R. / Sciascia, B. / Sciubba, A. / Seco, M. / Semennikov, A. / Sepp, I. / Serra, N. / Serrano, J. / Sestini, L. / Seyfert, P. / Shapkin, M. / Shapoval, I. / Shcheglov, Y. / Shears, T. / Shekhtman, L. / Shevchenko, V. / Shires, A. / Coutinho, R. Silva / Simi, G. / Sirendi, M. / Skidmore, N. / Skwarnicki, T. / Smith, N. A. / Smith, E. / Smith, J. / Smith, M. / Snoek, H. / Sokoloff, M. D. / Soler, F. J. P. / Soomro, F. / Souza, D. / De Paula, B. Souza / Spaan, B. / Sparkes, A. / Spradlin, P. / Sridharan, S. / Stagni, F. / Stahl, M. / Stahl, S. / Steinkamp, O. / Stenyakin, O. / Stevenson, S. / Stoica, S. / Stone, S. / Storaci, B. / Stracka, S. / Straticiuc, M. / Straumann, U. / Stroili, R. / Subbiah, V. K. / Sun, L. / Sutcliffe, W. / Swientek, K. / Swientek, S. / Syropoulos, V. / Szczekowski, M. / Szczypka, P. / Szilard, D. / Szumlak, T. / T'Jampens, S. / Teklishyn, M. / Tellarini, G. / Teubert, F. / Thomas, C. / Thomas, E. / van Tilburg, J. / Tisserand, V. / Tobin, M. / Tolk, S. / Tomassetti, L. / Tonelli, D. / Topp-Joergensen, S. / Torr, N. / Tournefier, E. / Tourneur, S. / Tran, M. T. / Tresch, M. / Tsaregorodtsev, A. / Tsopelas, P. / Tuning, N. / Garcia, M. Ubeda / Ukleja, A. / Ustyuzhanin, A. / Uwer, U. / Vagnoni, V. / Valenti, G. / Vallier, A. / Gomez, R. Vazquez / Regueiro, P. Vazquez / Sierra, C. Vázquez / Vecchi, S. / Velthuis, J. J. / Veltri, M. / Veneziano, G. / Vesterinen, M. / Viaud, B. / Vieira, D. / Diaz, M. Vieites / Vilasis-Cardona, X. / Vollhardt, A. / Volyanskyy, D. / Voong, D. / Vorobyev, A. / Vorobyev, V. / Voß, C. / Voss, H. / de Vries, J. A. / Waldi, R. / Wallace, C. / Wallace, R. / Walsh, J. / Wandernoth, S. / Wang, J. / Ward, D. R. / Watson, N. K. / Websdale, D. / Whitehead, M. / Wicht, J. / Wiedner, D. / Wilkinson, G. / Williams, M. P. / Williams, M. / Wilson, F. F. / Wimberley, J. / Wishahi, J. / Wislicki, W. / Witek, M. / Wormser, G. / Wotton, S. A. / Wright, S. / Wu, S. / Wyllie, K. / Xie, Y. / Xing, Z. / Xu, Z. / Yang, Z. / Yuan, X. / Yushchenko, O. / Zangoli, M. / Zavertyaev, M. / Zhang, L. / Zhang, W. C. / Zhang, Y. / Zhelezov, A. / Zhokhov, A. / Zhong, L. / Zvyagin, A.

2014

Abstract: A binned Dalitz plot analysis of $B^\pm \to D K^\pm$ decays, with $D \to K_S \pi^+\pi^-$ and $D \to K_S K^+ K^-$, is performed to measure the \CP-violating observables $x_{\pm}$ and $y_{\pm}$, which are sensitive to the Cabibbo-Kobayashi-Maskawa angle $\ ... ...

Abstract	A binned Dalitz plot analysis of $B^\pm \to D K^\pm$ decays, with $D \to K_S \pi^+\pi^-$ and $D \to K_S K^+ K^-$, is performed to measure the \CP-violating observables $x_{\pm}$ and $y_{\pm}$, which are sensitive to the Cabibbo-Kobayashi-Maskawa angle $\gamma$. The analysis exploits a sample of proton-proton collision data corresponding to 3.0\invfb collected by the LHCb experiment. Measurements from CLEO-c of the variation of the strong-interaction phase of the $D$ decay over the Dalitz plot are used as inputs. The values of the parameters are found to be $x_+ = (-7.7 \pm 2.4 \pm 1.0 \pm 0.4)\times 10^{-2}$, $x_- = (2.5 \pm 2.5 \pm 1.0 \pm 0.5) \times 10^{-2}$, $y_+ = (-2.2 \pm 2.5 \pm 0.4 \pm 1.0)\times 10^{-2}$, and $y_- = (7.5 \pm 2.9 \pm 0.5 \pm 1.4) \times 10^{-2}$. The first, second, and third uncertainties are the statistical, the experimental systematic, and that associated with the precision of the strong-phase parameters. These are the most precise measurements of these observables and correspond to $\gamma = (62^{\,+15}_{\,-14})^\circ$, with a second solution at $\gamma \to \gamma + 180^\circ$, and $r_B = 0.080^{+ 0.019}_{-0.021}$, where $r_B$ is the ratio between the suppressed and favoured $B$ decay amplitudes.
Keywords	High Energy Physics - Experiment
Subject code	612 ; 530
Publishing date	2014-08-12
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Book ; Online: Observation of charmonium pairs produced exclusively in $pp$ collisions

Aaij, R. / Adeva, B. / Adinolfi, M. / Affolder, A. / 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. / Anderson, J. /

Andreassen, R. / Andreotti, M. / Andrews, J. E. / Appleby, R. B. / Gutierrez, O. Aquines / Archilli, F. / Artamonov, A. / Artuso, M. / Aslanides, E. / Auriemma, G. / Baalouch, M. / Bachmann, S. / Back, J. J. / Badalov, A. / Baldini, W. / Barlow, R. J. / Barschel, C. / Barsuk, S. / Barter, W. / Batozskaya, V. / Battista, V. / Bay, A. / Beaucourt, L. / Beddow, J. / Bedeschi, F. / Bediaga, I. / Belogurov, S. / Belous, K. / Belyaev, I. / Ben-Haim, E. / Bencivenni, G. / Benson, S. / Benton, J. / Berezhnoy, A. / Bernet, R. / Bettler, M. -O. / van Beuzekom, M. / Bien, A. / Bifani, S. / Bird, T. / Bizzeti, A. / Bjørnstad, P. M. / Blake, T. / Blanc, F. / Blouw, J. / Blusk, S. / Bocci, V. / Bondar, A. / Bondar, N. / Bonivento, W. / Borghi, S. / Borgia, A. / Borsato, M. / Bowcock, T. J. V. / Bowen, E. / Bozzi, C. / Brambach, T. / Brand, J. van den / Bressieux, J. / Brett, D. / Britsch, M. / Britton, T. / Brodzicka, J. / Brook, N. H. / Brown, H. / Bursche, A. / Busetto, G. / Buytaert, J. / Cadeddu, S. / Calabrese, R. / Calvi, M. / Gomez, M. Calvo / Campana, P. / Perez, D. Campora / Carbone, A. / Carboni, G. / Cardinale, R. / Cardini, A. / Carson, L. / Akiba, K. Carvalho / Casse, G. / Cassina, L. / Garcia, L. Castillo / Cattaneo, M. / Cauet, Ch. / Cenci, R. / Charles, M. / Charpentier, Ph. / Chefdeville, M. / Chen, S. / Cheung, S. -F. / Chiapolini, N. / Chrzaszcz, M. / Ciba, K. / Vidal, X. Cid / Ciezarek, G. / Clarke, P. E. L. / Clemencic, M. / Cliff, H. V. / Closier, J. / Coco, V. / Cogan, J. / Cogneras, E. / Cojocariu, L. / Collins, P. / Comerma-Montells, A. / Contu, A. / Cook, A. / Coombes, M. / Coquereau, S. / Corti, G. / Corvo, M. / Counts, I. / Couturier, B. / Cowan, G. A. / Craik, D. C. / Torres, M. Cruz / Cunliffe, S. / Currie, R. / D'Ambrosio, C. / Dalseno, J. / David, P. / David, P. N. Y. / Davis, A. / De Bruyn, K. / De Capua, S. / De Cian, M. / De Miranda, J. M. / De Paula, L. / De Silva, W. / De Simone, P. / Decamp, D. / Deckenhoff, M. / Del Buono, L. / Déléage, N. / Derkach, D. / Deschamps, O. / Dettori, F. / Di Canto, A. / Dijkstra, H. / Donleavy, S. / Dordei, F. / Dorigo, M. / Suárez, A. Dosil / Dossett, D. / Dovbnya, A. / Dreimanis, K. / Dujany, G. / Dupertuis, F. / Durante, P. / Dzhelyadin, R. / Dziurda, A. / Dzyuba, A. / Easo, S. / Egede, U. / Egorychev, V. / Eidelman, S. / Eisenhardt, S. / Eitschberger, U. / Ekelhof, R. / Eklund, L. / Rifai, I. El / Elsasser, Ch. / Ely, S. / Esen, S. / Evans, H. -M. / Evans, T. / Falabella, A. / Färber, C. / Farinelli, C. / Farley, N. / Farry, S. / Fay, RF / Ferguson, D. / Albor, V. Fernandez / Rodrigues, F. Ferreira / Ferro-Luzzi, M. / Filippov, S. / Fiore, M. / Fiorini, M. / Firlej, M. / Fitzpatrick, C. / Fiutowski, T. / Fontana, M. / Fontanelli, F. / Forty, R. / Francisco, O. / Frank, M. / Frei, C. / Frosini, M. / Fu, J. / Furfaro, E. / Torreira, A. Gallas / Galli, D. / Gallorini, S. / Gambetta, S. / Gandelman, M. / Gandini, P. / Gao, Y. / Pardiñas, J. García / Garofoli, J. / Tico, J. Garra / Garrido, L. / Gaspar, C. / Gauld, R. / Gavardi, L. / Gavrilov, G. / Geraci, A. / Gersabeck, E. / Gersabeck, M. / Gershon, T. / Ghez, Ph. / Gianelle, A. / Giani', S. / Gibson, V. / Giubega, L. / Gligorov, V. V. / Göbel, C. / Golubkov, D. / Golutvin, A. / Gomes, A. / Gotti, C. / Gándara, M. Grabalosa / Diaz, R. Graciani / Cardoso, L. A. Granado / Graugés, E. / Graziani, G. / Grecu, A. / Greening, E. / Gregson, S. / Griffith, P. / Grillo, L. / Grünberg, O. / Gui, B. / Gushchin, E. / Guz, Yu. / Gys, T. / Hadjivasiliou, C. / Haefeli, G. / Haen, C. / Haines, S. C. / Hall, S. / Hamilton, B. / Hampson, T. / Han, X. / Hansmann-Menzemer, S. / Harnew, N. / Harnew, S. T. / Harrison, J. / He, J. / Head, T. / Heijne, V. / Hennessy, K. / Henrard, P. / Henry, L. / Morata, J. A. Hernando / van Herwijnen, E. / Heß, M. / Hicheur, A. / Hill, D. / Hoballah, M. / Hombach, C. / Hulsbergen, W. / Hunt, P. / Hussain, N. / Hutchcroft, D. / Hynds, D. / Idzik, M. / Ilten, P. / Jacobsson, R. / Jaeger, A. / Jalocha, J. / Jans, E. / Jaton, P. / Jawahery, A. / Jing, F. / John, M. / Johnson, D. / Jones, C. R. / Joram, C. / Jost, B. / Jurik, N. / Kaballo, M. / Kandybei, S. / Kanso, W. / Karacson, M. / Karbach, T. M. / Karodia, S. / Kelsey, M. / Kenyon, I. R. / Ketel, T. / Khanji, B. / Khurewathanakul, C. / Klaver, S. / Klimaszewski, K. / Kochebina, O. / Kolpin, M. / Komarov, I. / Koopman, R. F. / Koppenburg, P. / Korolev, M. / Kozlinskiy, A. / Kravchuk, L. / Kreplin, K. / Kreps, M. / Krocker, G. / Krokovny, P. / Kruse, F. / Kucewicz, W. / Kucharczyk, M. / Kudryavtsev, V. / Kurek, K. / Kvaratskheliya, T. / La Thi, V. N. / Lacarrere, D. / Lafferty, G. / Lai, A. / Lambert, D. / Lambert, R. W. / Lanfranchi, G. / Langenbruch, C. / Langhans, B. / Latham, T. / Lazzeroni, C. / Gac, R. Le / van Leerdam, J. / Lees, J. -P. / Lefèvre, R. / Leflat, A. / Lefrançois, J. / Leo, S. / Leroy, O. / Lesiak, T. / Leverington, B. / Li, Y. / Likhomanenko, T. / Liles, M. / Lindner, R. / Linn, C. / Lionetto, F. / Liu, B. / Lohn, S. / Longstaff, I. / Lopes, J. H. / Lopez-March, N. / Lowdon, P. / Lu, H. / Lucchesi, D. / Luo, H. / Lupato, A. / Luppi, E. / Lupton, O. / Machefert, F. / Machikhiliyan, I. V. / Maciuc, F. / Maev, O. / Malde, S. / Malinin, A. / Manca, G. / Mancinelli, G. / Mapelli, A. / Maratas, J. / Marchand, J. F. / Marconi, U. / Benito, C. Marin / Marino, P. / Märki, R. / Marks, J. / Martellotti, G. / Martens, A. / Sánchez, A. Martín / Martinelli, M. / Santos, D. Martinez / Vidal, F. Martinez / Tostes, D. Martins / Massafferri, A. / Matev, R. / Mathe, Z. / Matteuzzi, C. / Mazurov, A. / McCann, M. / McCarthy, J. / McNab, A. / McNulty, R. / McSkelly, B. / Meadows, B. / Meier, F. / Meissner, M. / Merk, M. / Milanes, D. A. / Minard, M. -N. / Moggi, N. / Rodriguez, J. Molina / Monteil, S. / Morandin, M. / Morawski, P. / Mordà, A. / Morello, M. J. / Moron, J. / Morris, A. -B. / Mountain, R. / Muheim, F. / Müller, K. / Mussini, M. / Muster, B. / Naik, P. / Nakada, T. / Nandakumar, R. / Nasteva, I. / Needham, M. / Neri, N. / Neubert, S. / Neufeld, N. / Neuner, M. / Nguyen, A. D. / Nguyen, T. D. / Nguyen-Mau, C. / Nicol, M. / Niess, V. / Niet, R. / Nikitin, N. / Nikodem, T. / Novoselov, A. / O'Hanlon, D. P. / Oblakowska-Mucha, A. / Obraztsov, V. / Oggero, S. / Ogilvy, S. / Okhrimenko, O. / Oldeman, R. / Onderwater, G. / Orlandea, M. / Rodrigues, B. Osorio / Goicochea, J. M. Otalora / Owen, P. / Oyanguren, A. / Pal, B. K. / Palano, A. / Palombo, F. / Palutan, M. / Panman, J. / Papanestis, A. / Pappagallo, M. / Pappalardo, L. L. / Parkes, C. / Parkinson, C. J. / Passaleva, G. / Patel, G. D. / Patel, M. / Patrignani, C. / Alvarez, A. Pazos / Pearce, A. / Pellegrino, A. / Altarelli, M. Pepe / Perazzini, S. / Trigo, E. Perez / Perret, P. / Perrin-Terrin, M. / Pescatore, L. / Pesen, E. / Petridis, K. / Petrolini, A. / Olloqui, E. Picatoste / Pietrzyk, B. / Pilař, T. / Pinci, D. / Pistone, A. / Playfer, S. / Casasus, M. Plo / Polci, F. / Poluektov, A. / Polycarpo, E. / Popov, A. / Popov, D. / Popovici, B. / Potterat, C. / Price, E. / Prisciandaro, J. / Pritchard, A. / Prouve, C. / Pugatch, V. / Navarro, A. Puig / Punzi, G. / Qian, W. / Rachwal, B. / Rademacker, J. H. / Rakotomiaramanana, B. / Rama, M. / Rangel, M. S. / Raniuk, I. / Rauschmayr, N. / Raven, G. / Reichert, S. / Reid, M. M. / Reis, A. C. dos / Ricciardi, S. / Richards, S. / Rihl, M. / Rinnert, K. / Molina, V. Rives / Romero, D. A. Roa / Robbe, P. / Rodrigues, A. B. / Rodrigues, E. / Perez, P. Rodriguez / Roiser, S. / Romanovsky, V. / Vidal, A. Romero / Rotondo, M. / Rouvinet, J. / Ruf, T. / Ruiz, H. / Valls, P. Ruiz / Silva, J. J. Saborido / Sagidova, N. / Sail, P. / Saitta, B. / Guimaraes, V. Salustino / Mayordomo, C. Sanchez / Sedes, B. Sanmartin / Santacesaria, R. / Rios, C. Santamarina / Santovetti, E. / Sarti, A. / Satriano, C. / Satta, A. / Saunders, D. M. / Savrie, M. / Savrina, D. / Schiller, M. / Schindler, H. / Schlupp, M. / Schmelling, M. / Schmidt, B. / Schneider, O. / Schopper, A. / Schune, M. -H. / Schwemmer, R. / Sciascia, B. / Sciubba, A. / Seco, M. / Semennikov, A. / Sepp, I. / Serra, N. / Serrano, J. / Sestini, L. / Seyfert, P. / Shapkin, M. / Shapoval, I. / Shcheglov, Y. / Shears, T. / Shekhtman, L. / Shevchenko, V. / Shires, A. / Coutinho, R. Silva / Simi, G. / Sirendi, M. / Skidmore, N. / Skwarnicki, T. / Smith, N. A. / Smith, E. / Smith, J. / Smith, M. / Snoek, H. / Sokoloff, M. D. / Soler, F. J. P. / Soomro, F. / Souza, D. / De Paula, B. Souza / Spaan, B. / Sparkes, A. / Spradlin, P. / Sridharan, S. / Stagni, F. / Stahl, M. / Stahl, S. / Steinkamp, O. / Stenyakin, O. / Stevenson, S. / Stoica, S. / Stone, S. / Storaci, B. / Stracka, S. / Straticiuc, M. / Straumann, U. / Stroili, R. / Subbiah, V. K. / Sun, L. / Sutcliffe, W. / Swientek, K. / Swientek, S. / Syropoulos, V. / Szczekowski, M. / Szczypka, P. / Szilard, D. / Szumlak, T. / T'Jampens, S. / Teklishyn, M. / Tellarini, G. / Teubert, F. / Thomas, C. / Thomas, E. / van Tilburg, J. / Tisserand, V. / Tobin, M. / Tolk, S. / Tomassetti, L. / Tonelli, D. / Topp-Joergensen, S. / Torr, N. / Tournefier, E. / Tourneur, S. / Tran, M. T. / Tresch, M. / Tsaregorodtsev, A. / Tsopelas, P. / Tuning, N. / Garcia, M. Ubeda / Ukleja, A. / Ustyuzhanin, A. / Uwer, U. / Vagnoni, V. / Valenti, G. / Vallier, A. / Gomez, R. Vazquez / Regueiro, P. Vazquez / Sierra, C. Vázquez / Vecchi, S. / Velthuis, J. J. / Veltri, M. / Veneziano, G. / Vesterinen, M. / Viaud, B. / Vieira, D. / Diaz, M. Vieites / Vilasis-Cardona, X. / Vollhardt, A. / Volyanskyy, D. / Voong, D. / Vorobyev, A. / Vorobyev, V. / Voß, C. / Voss, H. / de Vries, J. A. / Waldi, R. / Wallace, C. / Wallace, R. / Walsh, J. / Wandernoth, S. / Wang, J. / Ward, D. R. / Watson, N. K. / Websdale, D. / Whitehead, M. / Wicht, J. / Wiedner, D. / Wilkinson, G. / Williams, M. P. / Williams, M. / Wilson, F. F. / Wimberley, J. / Wishahi, J. / Wislicki, W. / Witek, M. / Wormser, G. / Wotton, S. A. / Wright, S. / Wu, S. / Wyllie, K. / Xie, Y. / Xing, Z. / Xu, Z. / Yang, Z. / Yuan, X. / Yushchenko, O. / Zangoli, M. / Zavertyaev, M. / Zhang, L. / Zhang, W. C. / Zhang, Y. / Zhelezov, A. / Zhokhov, A. / Zhong, L. / Zvyagin, A.

2014

Abstract: A search is performed for the central exclusive production of pairs of charmonia produced in proton-proton collisions. Using data corresponding to an integrated luminosity of $3{\rm\ fb}^{-1}$ collected at centre-of-mass energies of 7 and 8 TeV, $J/\psi ... ...

Abstract	A search is performed for the central exclusive production of pairs of charmonia produced in proton-proton collisions. Using data corresponding to an integrated luminosity of $3{\rm\ fb}^{-1}$ collected at centre-of-mass energies of 7 and 8 TeV, $J/\psi J/\psi$ and $J/\psi\psi(2S)$ pairs are observed, which have been produced in the absence of any other activity inside the LHCb acceptance that is sensitive to charged particles in the pseudorapidity ranges $(-3.5,-1.5)$ and $(1.5,5.0)$. Searches are also performed for pairs of P-wave charmonia and limits are set on their production. The cross-sections for these processes, where the dimeson system has a rapidity between 2.0 and 4.5, are measured to be $$ \begin{array}{rl} \sigma^{J/\psi J/\psi} &= 58\pm10{(\rm stat)} \pm 6{(\rm syst)} {\rm\ pb} , \\ \sigma^{J/\psi\psi(2S)} &= 63 ^{+27}_{-18}{(\rm stat)}\pm 10{(\rm syst)} {\rm\ pb} , \\ \sigma^{\psi(2S)\psi(2S)} &< 237 {\rm\ pb}, \\ \sigma^{\chi_{c0}\chi_{c0}} &< 69 {\rm\ nb}, \\ \sigma^{\chi_{c1}\chi_{c1}} &< 45 {\rm\ pb}, \\ \sigma^{\chi_{c2}\chi_{c2}} &< 141 {\rm\ pb}, \\ \end{array} $$ where the upper limits are set at the 90% confidence level. The measured $J/\psi J/\psi$ and $J/\psi\psi(2S)$ cross-sections are consistent with theoretical expectations. Comment: 21 pages, 5 figures
Keywords	High Energy Physics - Experiment
Subject code	612
Publishing date	2014-07-22
Publishing country	us
Document type	Book ; Online
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Book ; Online: Differential branching fraction and angular analysis of the decay $B_s^0\to\phi\mu^{+}\mu^{-}$

LHCb collaboration / Aaij, R. / Beteta, C. Abellan / 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. / Andreassen, R. / Appleby, R. B. / Gutierrez, O. Aquines / Archilli, F. / Artamonov, A. / Artuso, M. / Aslanides, E. / Auriemma, G. / Bachmann, S. / Back, J. J. / Baesso, C. / Balagura, V. / Baldini, W. / Barlow, R. J. / Barschel, C. / Barsuk, S. / Barter, W. / Bauer, Th. / Bay, A. / Beddow, J. / Bedeschi, F. / Bediaga, I. / Belogurov, S. / Belous, K. / Belyaev, I. / Ben-Haim, E. / Bencivenni, G. / Benson, S. / Benton, J. / Berezhnoy, A. / Bernet, R. / Bettler, M. -O. / van Beuzekom, M. / Bien, A. / Bifani, S. / Bird, T. / Bizzeti, A. / Bjørnstad, P. M. / Blake, T. / Blanc, F. / Blouw, J. / Blusk, S. / Bocci, V. / Bondar, A. / Bondar, N. / Bonivento, W. / Borghi, S. / Borgia, A. / Bowcock, T. J. V. / Bowen, E. / Bozzi, C. / Brambach, T. / Brand, J. van den / Bressieux, J. / Brett, D. / Britsch, M. / Britton, T. / Brook, N. H. / Brown, H. / Burducea, I. / Bursche, A. / Busetto, G. / Buytaert, J. / Cadeddu, S. / Callot, O. / Calvi, M. / Gomez, M. 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. / 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. M. / De Paula, L. / De Silva, W. / De Simone, P. / Decamp, D. / Deckenhoff, M. / Del Buono, L. / Déléage, N. / Derkach, D. / Deschamps, O. / Dettori, F. / Di Canto, A. / Di Ruscio, F. / Dijkstra, H. / Dogaru, M. / Donleavy, S. / Dordei, F. / Suárez, A. Dosil / Dossett, D. / Dovbnya, A. / Dupertuis, F. / Dzhelyadin, R. / Dziurda, A. / Dzyuba, A. / Easo, S. / Egede, U. / Egorychev, V. / Eidelman, S. / van Eijk, D. / Eisenhardt, S. / Eitschberger, U. / Ekelhof, R. / Eklund, L. / Rifai, I. El / Elsasser, Ch. / Elsby, D. / Falabella, A. / Färber, C. / Fardell, G. / Farinelli, C. / Farry, S. / Fave, V. / Ferguson, D. / Albor, V. Fernandez / Rodrigues, F. Ferreira / Ferro-Luzzi, M. / Filippov, S. / Fiore, M. / Fitzpatrick, C. / Fontana, M. / Fontanelli, F. / Forty, R. / Francisco, O. / Frank, M. / Frei, C. / Frosini, M. / Furcas, S. / Furfaro, E. / Torreira, A. Gallas / Galli, D. / Gandelman, M. / Gandini, P. / Gao, Y. / Garofoli, J. / Garosi, P. / Tico, J. Garra / Garrido, L. / Gaspar, C. / Gauld, R. / Gersabeck, E. / Gersabeck, M. / Gershon, T. / Ghez, Ph. / Gibson, V. / Gligorov, V. V. / Göbel, C. / Golubkov, D. / Golutvin, A. / Gomes, A. / Gordon, H. / Gándara, M. Grabalosa / Diaz, R. Graciani / Cardoso, L. A. Granado / Graugés, E. / Graziani, G. / Grecu, A. / Greening, E. / Gregson, S. / Griffith, P. / Grünberg, O. / Gui, B. / Gushchin, E. / Guz, Yu. / Gys, T. / Hadjivasiliou, C. / Haefeli, G. / Haen, C. / Haines, S. C. / Hall, S. / Hampson, T. / Hansmann-Menzemer, S. / Harnew, N. / Harnew, S. T. / Harrison, J. / Hartmann, T. / He, J. / Heijne, V. / Hennessy, K. / Henrard, P. / Morata, J. A. Hernando / van Herwijnen, E. / Hicheur, A. / Hicks, E. / Hill, D. / Hoballah, M. / Holtrop, M. / Hombach, C. / Hopchev, P. / Hulsbergen, W. / Hunt, P. / Huse, T. / Hussain, N. / Hutchcroft, D. / Hynds, D. / Iakovenko, V. / Idzik, M. / Ilten, P. / Jacobsson, R. / Jaeger, A. / Jans, E. / Jaton, P. / Jawahery, A. / Jing, F. / John, M. / Johnson, D. / Jones, C. R. / Joram, C. / Jost, B. / Kaballo, M. / Kandybei, S. / Karacson, M. / Karbach, T. M. / Kenyon, I. R. / Kerzel, U. / Ketel, T. / Keune, A. / Khanji, B. / Kochebina, O. / Komarov, I. / Koopman, R. F. / Koppenburg, P. / Korolev, M. / Kozlinskiy, A. / Kravchuk, L. / Kreplin, K. / Kreps, M. / Krocker, G. / Krokovny, P. / Kruse, F. / Kucharczyk, M. / Kudryavtsev, V. / Kvaratskheliya, T. / La Thi, V. N. / Lacarrere, D. / Lafferty, G. / Lai, A. / Lambert, D. / Lambert, R. W. / Lanciotti, E. / Lanfranchi, G. / Langenbruch, C. / Latham, T. / Lazzeroni, C. / Gac, R. 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F. / Wishahi, J. / Witek, M. / Wotton, S. A. / Wright, S. / Wu, S. / Wyllie, K. / Xie, Y. / Xing, F. / Xing, Z. / Yang, Z. / Young, R. / Yuan, X. / Yushchenko, O. / Zangoli, M. / Zavertyaev, M. / Zhang, F. / Zhang, L. / Zhang, W. C. / Zhang, Y. / Zhelezov, A. / Zhokhov, A. / Zhong, L. / Zvyagin, A.

2013

Abstract: The determination of the differential branching fraction and the first angular analysis of the decay $B_s^0\to\phi\mu^{+}\mu^{-}$ are presented using data, corresponding to an integrated luminosity of $1.0\,{\rm fb}^{-1}$, collected by the LHCb ... ...

Abstract	The determination of the differential branching fraction and the first angular analysis of the decay $B_s^0\to\phi\mu^{+}\mu^{-}$ are presented using data, corresponding to an integrated luminosity of $1.0\,{\rm fb}^{-1}$, collected by the LHCb experiment at $\sqrt{s}=7\,{\rm TeV}$. The differential branching fraction is determined in bins of $q^{2}$, the invariant dimuon mass squared. Integration over the full $q^{2}$ range yields a total branching fraction of ${\cal B}(B_s^0\to\phi\mu^{+}\mu^{-}) = (7.07\,^{+0.64}_{-0.59}\pm 0.17 \pm 0.71)\times 10^{-7}$, where the first uncertainty is statistical, the second systematic, and the third originates from the branching fraction of the normalisation channel. An angular analysis is performed to determine the angular observables $F_{\rm L}$, $S_3$, $A_6$, and $A_9$. The observables are consistent with Standard Model expectations. Comment: Updated to correspond to proof from JHEP. Results unchanged
Keywords	High Energy Physics - Experiment
Subject code	612
Publishing date	2013-05-09
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Book ; Online: First observation of B0->J/\psi K+K- and search for B0->J/\psi\phi\ 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. /

Andreassen, R. / Andrews, J. E. / Appleby, R. B. / Gutierrez, O. Aquines / Archilli, F. / Artamonov, A. / Artuso, M. / Aslanides, E. / Auriemma, G. / Baalouch, M. / Bachmann, S. / Back, J. J. / Baesso, C. / Balagura, V. / Baldini, W. / Barlow, R. J. / Barschel, C. / Barsuk, S. / Barter, W. / Bauer, Th. / Bay, A. / Beddow, J. / Bedeschi, F. / Bediaga, I. / Belogurov, S. / Belous, K. / Belyaev, I. / Ben-Haim, E. / Bencivenni, G. / Benson, S. / Benton, J. / Berezhnoy, A. / Bernet, R. / Bettler, M. -O. / van Beuzekom, M. / Bien, A. / Bifani, S. / Bird, T. / Bizzeti, A. / Bjørnstad, P. M. / Blake, T. / Blanc, F. / Blouw, J. / Blusk, S. / Bocci, V. / Bondar, A. / Bondar, N. / Bonivento, W. / Borghi, S. / Borgia, A. / Bowcock, T. J. V. / Bowen, E. / Bozzi, C. / Brambach, T. / Brand, J. van den / Bressieux, J. / Brett, D. / Britsch, M. / Britton, T. / Brook, N. H. / Brown, H. / Bursche, A. / Busetto, G. / Buytaert, J. / Cadeddu, S. / Callot, O. / Calvi, M. / Gomez, M. 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. / Cassina, L. / Garcia, L. Castillo / Cattaneo, M. / Cauet, Ch. / Cenci, R. / Charles, M. / Charpentier, Ph. / Chen, P. / Cheung, S. -F. / 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 first observation of the B0->J/\psi K+K- decay is presented with a data sample corresponding to an integrated luminosity of 1.0/fb of pp collisions at a center-of-mass energy of 7 TeV collected with the LHCb detector. The branching fraction is ... ...

Abstract	The first observation of the B0->J/\psi K+K- decay is presented with a data sample corresponding to an integrated luminosity of 1.0/fb of pp collisions at a center-of-mass energy of 7 TeV collected with the LHCb detector. The branching fraction is measured to be B(B0->J/\psi K+K-) = (2.53 +/- 0.31 +/- 0.19)x10^{-6}, where the first uncertainty is statistical and the second is systematic. An amplitude analysis of the final state in the B0->J/\psi K+K- decay is performed to separate resonant and nonresonant contributions in the K+K- spectrum. Evidence of the a0(980) resonance is reported with statistical significance of 3.9 standard deviations. The corresponding product branching fraction is measured to be B(B0->J/\psi a0(980), a0(980)->K+K-)=(4.70 +/- 3.31 +/- 0.72)x10^{-7}, yielding an upper limit of B(B0->J/\psi a0(980), a0(980)->K+K-)<9.0x10^{-7} at 90% confidence level. No evidence of the resonant decay B0->J/\psi\phi\; is found, and an upper limit on its branching fraction is set to be B(B0->J/\psi\phi)< 1.9x10^{-7} at 90% confidence level. Comment: 22 pages 16 figures; v2 contains PRD review responses
Keywords	High Energy Physics - Experiment
Subject code	612
Publishing date	2013-08-27
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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