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  1. Article ; Online: Search for B^{+}→K^{+}νν[over ¯] Decays Using an Inclusive Tagging Method at Belle II.

    Abudinén, F / Adachi, I / Adamczyk, K / Ahlburg, P / Aihara, H / Akopov, N / Aloisio, A / Anh Ky, N / Asner, D M / Atmacan, H / Aushev, T / Aushev, V / Baur, A / Babu, V / Baehr, S / Bambade, P / Banerjee, Sw / Bansal, S / Baudot, J /
    Becker, J / Behera, P K / Bennett, J V / Bernieri, E / Bernlochner, F U / Bertemes, M / Bertholet, E / Bessner, M / Bettarini, S / Bianchi, F / Bilka, T / Biswas, D / Bozek, A / Bračko, M / Branchini, P / Braun, N / Browder, T E / Budano, A / Bussino, S / Campajola, M / Cao, L / Casarosa, G / Cecchi, C / Červenkov, D / Chang, P / Cheaib, R / Chekelian, V / Chen, C / Chen, Y-T / Cheon, B G / Chilikin, K / Chirapatpimol, K / Cho, K / Cho, S-J / Choudhury, S / Cinabro, D / Corona, L / Cremaldi, L M / Cunliffe, S / Czank, T / Dattola, F / De La Cruz-Burelo, E / de Marino, G / De Nardo, G / De Nuccio, M / De Pietro, G / de Sangro, R / Destefanis, M / Dey, S / De Yta-Hernandez, A / Di Canto, A / Di Capua, F / Dingfelder, J / Doležal, Z / Domínguez Jiménez, I / Dong, T V / Dort, K / Dubey, S / Duell, S / Dujany, G / Eidelman, S / Eliachevitch, M / Epifanov, D / Ferber, T / Ferlewicz, D / Fillinger, T / Finocchiaro, G / Fiore, S / Fodor, A / Forti, F / Frey, A / Fulsom, B G / Gabyshev, N / Ganiev, E / Garcia-Hernandez, M / Garmash, A / Gaur, V / Gaz, A / Gellrich, A / Giordano, R / Giri, A / Glazov, A / Gobbo, B / Godang, R / Goldenzweig, P / Golob, B / Grace, P / Gradl, W / Graziani, E / Greenwald, D / Guan, Y / Gudkova, K / Hadjivasiliou, C / Halder, S / Hara, K / Hartbrich, O / Hayasaka, K / Hayashii, H / Hazra, S / Hearty, C / Heredia de la Cruz, I / Hernández Villanueva, M / Hershenhorn, A / Higuchi, T / Hill, E C / Hirata, H / Hoek, M / Hohmann, M / Hsu, C-L / Humair, T / Iijima, T / Inami, K / Inguglia, G / Irakkathil Jabbar, J / Ishikawa, A / Itoh, R / Iwasaki, M / Iwasaki, Y / Jackson, P / Jacobs, W W / Jaffe, D E / Jin, Y / Joo, C / Junkerkalefeld, H / Kaliyar, A B / Kandra, J / Kang, K H / Karl, R / Karyan, G / Kawasaki, T / Ketter, C / Kichimi, H / Kiesling, C / Kim, C-H / Kim, D Y / Kim, Y-K / Kimmel, T D / Kodyš, P / Koga, T / Kohani, S / Konno, T / Korobov, A / Korpar, S / Kovalenko, E / Kraetzschmar, T M G / Krinner, F / Križan, P / Krokovny, P / Kuhr, T / Kumar, J / Kumar, M / Kumar, R / Kumara, K / Kunigo, T / Kurz, S / Kuzmin, A / Kwon, Y-J / Lacaprara, S / Lai, Y-T / La Licata, C / Lanceri, L / Lange, J S / Laurenza, M / Lautenbach, K / Le Diberder, F R / Lee, S C / Leitl, P / Levit, D / Lewis, P M / Li, C / Li, L K / Li, S X / Li, Y B / Libby, J / Lieret, K / Liptak, Z / Liu, Q Y / Liventsev, D / Longo, S / Lozar, A / Lueck, T / Lyu, C / Maggiora, M / Maity, S / Manfredi, R / Manoni, E / Marcello, S / Marinas, C / Martini, A / Masuda, M / Matsuda, T / Matsuoka, K / Matvienko, D / Meier, F / Merola, M / Metzner, F / Milesi, M / Miller, C / Miyabayashi, K / Miyake, H / Mizuk, R / Mohanty, G B / Moser, H-G / Mrvar, M / Müller, F J / Murphy, C / Mussa, R / Nakamura, K R / Nakao, M / Natkaniec, Z / Natochii, A / Nayak, M / Nazaryan, G / Niebuhr, C / Nisar, N K / Nishida, S / Nishimura, K / Ogawa, S / Onishchuk, Y / Ono, H / Onuki, Y / Oskin, P / Ozaki, H / Pakhlov, P / Pakhlova, G / Paladino, A / Pang, T / Panta, A / Paoloni, E / Pardi, S / Park, H / Park, S-H / Paschen, B / Passeri, A / Pathak, A / Patra, S / Paul, S / Pedlar, T K / Peruzzi, I / Pestotnik, R / Piccolo, M / Piilonen, L E / Podesta-Lerma, P L M / Podobnik, T / Pokharel, S / Polat, G / Popov, V / Praz, C / Prell, S / Prencipe, E / Prim, M T / Rad, N / Rados, P / Raiz, S / Remnev, M / Ripp-Baudot, I / Ritter, M / Rizzo, G / Rizzuto, L B / Robertson, S H / Rodríguez Pérez, D / Roney, J M / Rostomyan, A / Rout, N / Russo, G / Sahoo, D / Sanders, D A / Sandilya, S / Sangal, A / Santelj, L / Sato, Y / Savinov, V / Scavino, B / Schueler, J / Schwanda, C / Schwartz, A J / Seddon, R M / Seino, Y / Selce, A / Senyo, K / Serrano, J / Sevior, M E / Sfienti, C / Shiu, J-G / Shwartz, B / Sibidanov, A / Simon, F / Sobie, R J / Soffer, A / Sokolov, A / Solovieva, E / Spataro, S / Spruck, B / Starič, M / Stefkova, S / Stottler, Z S / Stroili, R / Sumihama, M / Sumisawa, K / Summers, D J / Sutcliffe, W / Suzuki, S Y / Svidras, H / Tabata, M / Takahashi, M / Takizawa, M / Tamponi, U / Tanaka, S / Tanida, K / Tanigawa, H / Taniguchi, N / Taras, P / Tenchini, F / Tonelli, D / Torassa, E / Toutounji, N / Trabelsi, K / Uchida, M / Unno, Y / Uno, K / Uno, S / Urquijo, P / Ushiroda, Y / Usov, Y V / Vahsen, S E / van Tonder, R / Varner, G S / Varvell, K E / Vinokurova, A / Vitale, L / Wach, B / Waheed, E / Wakeling, H M / Wan Abdullah, W / Wang, M-Z / Wang, X L / Warburton, A / Watanuki, S / Webb, J / Welsch, M / Wessel, C / Wiechczynski, J / Windel, H / Xu, X P / Yabsley, B D / Yamada, S / Yan, W / Yang, S B / Ye, H / Yelton, J / Yin, J H / Yook, Y M / Yoshihara, K / Yuan, C Z / Yusa, Y / Zani, L / Zhilich, V / Zhou, Q D / Zhou, X Y / Zhukova, V I

    Physical review letters

    2021  Volume 127, Issue 18, Page(s) 181802

    Abstract: A search for the flavor-changing neutral-current decay B^{+}→K^{+}νν[over ¯] is performed at the Belle II experiment at the SuperKEKB asymmetric energy electron-positron collider. The data sample corresponds to an integrated luminosity of 63  fb^{-1} ... ...

    Abstract A search for the flavor-changing neutral-current decay B^{+}→K^{+}νν[over ¯] is performed at the Belle II experiment at the SuperKEKB asymmetric energy electron-positron collider. The data sample corresponds to an integrated luminosity of 63  fb^{-1} collected at the ϒ(4S) resonance and a sample of 9  fb^{-1} collected at an energy 60 MeV below the resonance. Because the measurable decay signature involves only a single charged kaon, a novel measurement approach is used that exploits not only the properties of the B^{+}→K^{+}νν[over ¯] decay, but also the inclusive properties of the other B meson in the ϒ(4S)→BB[over ¯] event, to suppress the background from other B meson decays and light-quark pair production. This inclusive tagging approach offers a higher signal efficiency compared to previous searches. No significant signal is observed. An upper limit on the branching fraction of B^{+}→K^{+}νν[over ¯] of 4.1×10^{-5} is set at the 90% confidence level.
    Language English
    Publishing date 2021-11-12
    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.127.181802
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Precise Measurement of the D^{0} and D^{+} Lifetimes at Belle II.

    Abudinén, F / Adachi, I / Adamczyk, K / Aggarwal, L / Ahmed, H / Aihara, H / Akopov, N / Aloisio, A / Anh Ky, N / Asner, D M / Atmacan, H / Aushev, V / Babu, V / Bacher, S / Bae, H / Baehr, S / Bahinipati, S / Bambade, P / Banerjee, Sw /
    Bansal, S / Barrett, M / Baudot, J / Bauer, M / Baur, A / Becker, J / Behera, P K / Bennett, J V / Bernieri, E / Bernlochner, F U / Bertemes, M / Bertholet, E / Bessner, M / Bettarini, S / Bhardwaj, V / Bianchi, F / Bilka, T / Bilokin, S / Biswas, D / Bobrov, A / Bodrov, D / Bolz, A / Bozek, A / Bračko, M / Branchini, P / Braun, N / Briere, R A / Browder, T E / Budano, A / Bussino, S / Campajola, M / Cao, L / Casarosa, G / Cecchi, C / Červenkov, D / Chang, M-C / Chang, P / Cheaib, R / Chekelian, V / Chen, C / Chen, Y-T / Cheon, B G / Chilikin, K / Chirapatpimol, K / Cho, H-E / Cho, K / Cho, S-J / Choi, S-K / Choudhury, S / Cinabro, D / Corona, L / Cremaldi, L M / Cunliffe, S / Czank, T / Dattola, F / De La Cruz-Burelo, E / de Marino, G / De Nardo, G / De Pietro, G / de Sangro, R / Destefanis, M / Dey, S / De Yta-Hernandez, A / Di Canto, A / Di Capua, F / Dingfelder, J / Doležal, Z / Domínguez Jiménez, I / Dong, T V / Dorigo, M / Dort, K / Dossett, D / Dubey, S / Duell, S / Dujany, G / Ecker, P / Epifanov, D / Ferber, T / Ferlewicz, D / Finocchiaro, G / Flood, K / Fodor, A / Forti, F / Fulsom, B G / Gabrielli, A / Gabyshev, N / Gaz, A / Gellrich, A / Giakoustidis, G / Giordano, R / Giri, A / Glazov, A / Gobbo, B / Godang, R / Goldenzweig, P / Golob, B / Gradl, W / Graziani, E / Greenwald, D / Gu, T / Guan, Y / Gudkova, K / Guilliams, J / Hadjivasiliou, C / Halder, S / Hara, K / Hara, T / Hartbrich, O / Hayasaka, K / Hayashii, H / Hazra, S / Hearty, C / Heredia de la Cruz, I / Hernández Villanueva, M / Hershenhorn, A / Higuchi, T / Hill, E C / Hirata, H / Hoek, M / Hohmann, M / Hsu, C-L / Humair, T / Iijima, T / Inami, K / Inguglia, G / Ishikawa, A / Itoh, R / Iwasaki, M / Iwasaki, Y / Jacobs, W W / Jaffe, D E / Jang, E-J / Jia, S / Jin, Y / Junkerkalefeld, H / Kakuno, H / Kaliyar, A B / Kandra, J / Kang, K H / Karl, R / Karyan, G / Kato, Y / Kawasaki, T / Kiesling, C / Kim, C-H / Kim, D Y / Kim, Y-K / Kim, Y / Kimmel, T D / Kinoshita, K / Kodyš, P / Koga, T / Kohani, S / Konno, T / Korpar, S / Kovalenko, E / Kowalewski, R / Kraetzschmar, T M G / Krinner, F / Križan, P / Krokovny, P / Kuhr, T / Kumar, J / Kumar, M / Kumar, R / Kumara, K / Kurz, S / Kuzmin, A / Kwon, Y-J / Lacaprara, S / Lalwani, K / Lam, T / Lanceri, L / Lange, J S / Laurenza, M / Lautenbach, K / Le Diberder, F R / Lee, S C / Leitl, P / Levit, D / Li, C / Li, L K / Libby, J / Lieret, K / Liptak, Z / Liu, Q Y / Liventsev, D / Longo, S / Lueck, T / Lyu, C / Manfredi, R / Manoni, E / Marinas, C / Martini, A / Matsuda, T / Matsuoka, K / Matvienko, D / McKenna, J A / Meier, F / Merola, M / Metzner, F / Miller, C / Miyabayashi, K / Mizuk, R / Mohanty, G B / Molina-Gonzalez, N / Moon, H / Moser, H-G / Mrvar, M / Murphy, C / Mussa, R / Nakamura, I / Nakamura, K R / Nakao, M / Nakazawa, H / Natkaniec, Z / Natochii, A / Nazaryan, G / Niebuhr, C / Niiyama, M / Nisar, N K / Nishida, S / Nishimura, K / Ogawa, S / Onishchuk, Y / Ono, H / Onuki, Y / Oskin, P / Oxford, E R / Ozaki, H / Pakhlov, P / Paladino, A / Pang, T / Panta, A / Paoloni, E / Pardi, S / Park, H / Park, S-H / Paschen, B / Passeri, A / Pathak, A / Patra, S / Paul, S / Pedlar, T K / Peruzzi, I / Peschke, R / Pestotnik, R / Pham, F / Piccolo, M / Piilonen, L E / Pinna Angioni, G / Podesta-Lerma, P L M / Podobnik, T / Pokharel, S / Polat, G / Popov, V / Praz, C / Prell, S / Prencipe, E / Prim, M T / Purohit, M V / Purwar, H / Rad, N / Rados, P / Raiz, S / Reiter, S / Remnev, M / Ripp-Baudot, I / Rizzo, G / Rizzuto, L B / Robertson, S H / Roney, J M / Rostomyan, A / Rout, N / Rozanska, M / Sahoo, D / Sanders, D A / Sandilya, S / Sangal, A / Santelj, L / Sato, Y / Savinov, V / Scavino, B / Schueler, J / Schwanda, C / Schwartz, A J / Seino, Y / Selce, A / Senyo, K / Serrano, J / Sfienti, C / Shiu, J-G / Shwartz, B / Sibidanov, A / Simon, F / Sobie, R J / Soffer, A / Sokolov, A / Solovieva, E / Spataro, S / Spruck, B / Starič, M / Stefkova, S / Stottler, Z S / Stroili, R / Strube, J / Sumihama, M / Sutcliffe, W / Suzuki, S Y / Svidras, H / Tabata, M / Takizawa, M / Tamponi, U / Tanaka, S / Tanida, K / Tanigawa, H / Taniguchi, N / Tenchini, F / Tiwary, R / Tonelli, D / Torassa, E / Toutounji, N / Trabelsi, K / Tsuboyama, T / Ueda, I / Uehara, S / Uematsu, Y / Uglov, T / Unger, K / Unno, Y / Uno, K / Uno, S / Urquijo, P / Ushiroda, Y / Usov, Y V / Vahsen, S E / van Tonder, R / Varner, G S / Vinokurova, A / Vitale, L / Vossen, A / Waheed, E / Wakeling, H M / Wang, E / Wang, M-Z / Wang, X L / Warburton, A / Watanabe, M / Welsch, M / Wessel, C / Wiechczynski, J / Won, E / Xu, X P / Yabsley, B D / Yamada, S / Yan, W / Yang, S B / Ye, H / Yelton, J / Yin, J H / Yoshihara, K / Yusa, Y / Zani, L / Zhilich, V / Zhou, Q D / Zhou, X Y / Zhukova, V I / Žlebčík, R

    Physical review letters

    2021  Volume 127, Issue 21, Page(s) 211801

    Abstract: We report a measurement of the D^{0} and D^{+} lifetimes using D^{0}→K^{-}π^{+} and D^{+}→K^{-}π^{+}π^{+} decays reconstructed in e^{+}e^{-}→cc[over ¯] data recorded by the Belle II experiment at the SuperKEKB asymmetric-energy e^{+}e^{-} collider. The ... ...

    Abstract We report a measurement of the D^{0} and D^{+} lifetimes using D^{0}→K^{-}π^{+} and D^{+}→K^{-}π^{+}π^{+} decays reconstructed in e^{+}e^{-}→cc[over ¯] data recorded by the Belle II experiment at the SuperKEKB asymmetric-energy e^{+}e^{-} collider. The data, collected at center-of-mass energies at or near the ϒ(4S) resonance, correspond to an integrated luminosity of 72  fb^{-1}. The results, τ(D^{0})=410.5±1.1(stat)±0.8(syst)  fs and τ(D^{+})=1030.4±4.7(stat)±3.1(syst)  fs, are the most precise to date and are consistent with previous determinations.
    Language English
    Publishing date 2021-12-03
    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.127.211801
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Direct measurement of the phi(1020) leptonic branching ratio.

    Achasov, M N / Beloborodov, K I / Berdyugin, A V / Bogdanchikov, A G / Bozhenok, A V / Bukin, A D / Bukin, D A / Burdin, S V / Dimova, T V / Drozdetsky, A A / Druzhinin, V P / Dubrovin, M S / Gaponenko, I A / Golubev, V B / Ivanchenko, V N / Ivanov, P M / Korol, A A / Koshuba, S V / Lysenko, A P /
    Nesterenko, I N / Pakhtusova, E V / Perevedentsev, E A / Salnikov, A A / Serednyakov, S I / Shary, V V / Shatunov, Y M / Sidorov, V A / Silagadze, Z K / Skrinsky, A N / Usov, Y V / Vasiljev, A V

    Physical review letters

    2001  Volume 86, Issue 9, Page(s) 1698–1701

    Abstract: The process e(+)e(-)-->mu(+)mu(-) has been studied by the SND detector at the VEPP-2M e(+)e(-) collider in the phi(1020)-resonance energy region. The measured effective phi meson leptonic branching ratio B(phi-->l(+)l(-)) identical with square root of B( ... ...

    Abstract The process e(+)e(-)-->mu(+)mu(-) has been studied by the SND detector at the VEPP-2M e(+)e(-) collider in the phi(1020)-resonance energy region. The measured effective phi meson leptonic branching ratio B(phi-->l(+)l(-)) identical with square root of B(phi-->e(+)e(-))B(phi-->mu(+)mu(-))] = (2.89 +/- 0.10 +/- 0.06) x 10(-4) agrees well with the Particle Data Group value B(phi-->e(+)e(-)) = (2.91 +/- 0.07) x 10(-4), confirming mu-e universality. Without additional assumption of mu-e universality the branching ratio B(phi-->mu(+)mu(-)) = (2.87 +/- 0.20 +/- 0.14) x 10(-4) was obtained.
    Language English
    Publishing date 2001-02-26
    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.86.1698
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Book ; Online: Measurement of the branching fractions of $B\to\eta' K$ decays using 2019/2020 Belle II data

    Belle II Collaboration / Abudinén, F. / Adachi, I. / Adak, R. / Adamczyk, K. / Ahlburg, P. / Ahn, J. K. / Aihara, H. / Akopov, N. / Aloisio, A. / Ameli, F. / Andricek, L. / Ky, N. Anh / Asner, D. M. / Atmacan, H. / Aulchenko, V. / Aushev, T. / Aushev, V. / Aziz, T. /
    Babu, V. / Bacher, S. / Baehr, S. / Bahinipati, S. / Bakich, A. M. / Bambade, P. / Banerjee, Sw. / Bansal, S. / Barrett, M. / Batignani, G. / Baudot, J. / Beaulieu, A. / Becker, J. / Behera, P. K. / Bender, M. / Bennett, J. V. / Bernieri, E. / Bernlochner, F. U. / Bertemes, M. / Bertholet, E. / Bessner, M. / Bettarini, S. / Bhardwaj, V. / Bhuyan, B. / Bianchi, F. / Bilka, T. / Bilokin, S. / Biswas, D. / Bobrov, A. / Bondar, A. / Bonvicini, G. / Bozek, A. / Bračko, M. / Branchini, P. / Braun, N. / Briere, R. A. / Browder, T. E. / Brown, D. N. / Budano, A. / Burmistrov, L. / Bussino, S. / Campajola, M. / Cao, L. / Caria, G. / Casarosa, G. / Cecchi, C. / Červenkov, D. / Chang, M. C. / Chang, P. / Cheaib, R. / Chekelian, V. / Chen, C. / Chen, Y. Q. / Chen, Y. T. / Cheon, B. G. / Chilikin, K. / Chirapatpimol, K. / Cho, H. E. / Cho, K. / Cho, S. J. / Choi, S. K. / Choudhury, S. / Cinabro, D. / Corona, L. / Cremaldi, L. M. / Cuesta, D. / Cunliffe, S. / Czank, T. / Dash, N. / Dattola, F. / De La Cruz-Burelo, E. / de Marino, G. / De Nardo, G. / De Nuccio, M. / De Pietro, G. / de Sangro, R. / Deschamps, B. / Destefanis, M. / Dey, S. / De Yta-Hernandez, A. / Di Canto, A. / Di Capua, F. / Di Carlo, S. / Dingfelder, J. / Doležal, Z. / Jiménez, I. Domínguez / Dong, T. V. / Dort, K. / Dossett, D. / Dubey, S. / Duell, S. / Dujany, G. / Eidelman, S. / Eliachevitch, M. / Epifanov, D. / Fast, J. E. / Ferber, T. / Ferlewicz, D. / Fillinger, T. / Finocchiaro, G. / Fiore, S. / Fioroni, V. / Fischer, P. / Fodor, A. / Forti, F. / Frey, A. / Friedl, M. / Fulsom, B. G. / Gabriel, M. / Gabyshev, N. / Ganiev, E. / Garcia-Hernandez, M. / Garg, R. / Garmash, A. / Gaur, V. / Gaz, A. / Gebauer, U. / Gelb, M. / Gellrich, A. / Gemmler, J. / Geßler, T. / Getzkow, D. / Giordano, R. / Giri, A. / Glazov, A. / Gobbo, B. / Godang, R. / Goldenzweig, P. / Golob, B. / Gomis, P. / Grace, P. / Gradl, W. / Graziani, E. / Greenwald, D. / Guan, Y. / Hadjivasiliou, C. / Halder, S. / Hara, K. / Hara, T. / Hartbrich, O. / Hayasaka, K. / Hayashii, H. / Hazra, S. / Hearty, C. / Hedges, M. T. / de la Cruz, I. Heredia / Villanueva, M. Hernández / Hershenhorn, A. / Higuchi, T. / Hill, E. C. / Hirata, H. / Hoek, M. / Hohmann, M. / Hollitt, S. / Hotta, T. / Hsu, C. L. / Hu, Y. / Huang, K. / Humair, T. / Iijima, T. / Inami, K. / Inguglia, G. / Jabbar, J. Irakkathil / Ishikawa, A. / Itoh, R. / Iwasaki, M. / Iwasaki, Y. / Iwata, S. / Jackson, P. / Jacobs, W. W. / Jaegle, I. / Jaffe, D. E. / Jang, E. J. / Jeandron, M. / Jeon, H. B. / Jia, S. / Jin, Y. / Joo, C. / Joo, K. K. / Junkerkalefeld, H. / Kadenko, I. / Kahn, J. / Kakuno, H. / Kaliyar, A. B. / Kandra, J. / Kang, K. H. / Kapusta, P. / Karl, R. / Karyan, G. / Kato, Y. / Kawai, H. / Kawasaki, T. / Keck, T. / Ketter, C. / Kichimi, H. / Kiesling, C. / Kim, B. H. / Kim, C. H. / Kim, D. Y. / Kim, H. J. / Kim, K. H. / Kim, K. / Kim, S. H. / Kim, Y. K. / Kim, Y. / Kimmel, T. D. / Kindo, H. / Kinoshita, K. / Kirby, B. / Kleinwort, C. / Knysh, B. / Kodyš, P. / Koga, T. / Kohani, S. / Komarov, I. / Konno, T. / Korpar, S. / Kovalchuk, N. / Kraetzschmar, T. M. G. / Krinner, F. / Križan, P. / Kroeger, R. / Krohn, J. F. / Krokovny, P. / Krüger, H. / Kuehn, W. / Kuhr, T. / Kumar, J. / Kumar, M. / Kumar, R. / Kumara, K. / Kumita, T. / Kunigo, T. / Künzel, M. / Kurz, S. / Kuzmin, A. / Kvasnička, P. / Kwon, Y. J. / Lacaprara, S. / Lai, Y. T. / La Licata, C. / Lalwani, K. / Lanceri, L. / Lange, J. S. / Lautenbach, K. / Laycock, P. J. / Diberder, F. R. Le / Lee, I. S. / Lee, S. C. / Leitl, P. / Levit, D. / Lewis, P. M. / Li, C. / Li, L. K. / Li, S. X. / Li, Y. B. / Libby, J. / Lieret, K. / Gioi, L. Li / Lin, J. / Liptak, Z. / Liu, Q. Y. / Liu, Z. A. / Liventsev, D. / Longo, S. / Loos, A. / Lu, P. / Lubej, M. / Lueck, T. / Luetticke, F. / Luo, T. / Lyu, C. / MacQueen, C. / Maeda, Y. / Maggiora, M. / Maity, S. / Manfredi, R. / Manoni, E. / Marcello, S. / Marinas, C. / Martini, A. / Masuda, M. / Matsuda, T. / Matsuoka, K. / Matvienko, D. / McNeil, J. / Meggendorfer, F. / Mei, J. C. / Meier, F. / Merola, M. / Metzner, F. / Milesi, M. / Miller, C. / Miyabayashi, K. / Miyake, H. / Miyata, H. / Mizuk, R. / Azmi, K. / Mohanty, G. B. / Moon, H. / Moon, T. / Grimaldo, J. A. Mora / Morii, T. / Moser, H. G. / Mrvar, M. / Mueller, F. / Müller, F. J. / Muller, Th. / Muroyama, G. / Murphy, C. / Mussa, R. / Nakagiri, K. / Nakamura, I. / Nakamura, K. R. / Nakano, E. / Nakao, M. / Nakayama, H. / Nakazawa, H. / Nanut, T. / Natkaniec, Z. / Natochii, A. / Nayak, M. / Nazaryan, G. / Neverov, D. / Niebuhr, C. / Niiyama, M. / Ninkovic, J. / Nisar, N. K. / Nishida, S. / Nishimura, K. / Nishimura, M. / Nouxman, M. H. A. / Oberhof, B. / Ogawa, K. / Ogawa, S. / Olsen, S. L. / Onishchuk, Y. / Ono, H. / Onuki, Y. / Oskin, P. / Oxford, E. R. / Ozaki, H. / Pakhlov, P. / Pakhlova, G. / Paladino, A. / Pang, T. / Panta, A. / Paoloni, E. / Pardi, S. / Park, H. / Park, S. H. / Paschen, B. / Passeri, A. / Pathak, A. / Patra, S. / Paul, S. / Pedlar, T. K. / Peruzzi, I. / Peschke, R. / Pestotnik, R. / Piccolo, M. / Piilonen, L. E. / Podesta-Lerma, P. L. M. / Polat, G. / Popov, V. / Praz, C. / Prell, S. / Prencipe, E. / Prim, M. T. / Purohit, M. V. / Rad, N. / Rados, P. / Raiz, S. / Rasheed, R. / Reif, M. / Reiter, S. / Remnev, M. / Resmi, P. K. / Ripp-Baudot, I. / Ritter, M. / Ritzert, M. / Rizzo, G. / Rizzuto, L. B. / Robertson, S. H. / Pérez, D. Rodríguez / Roney, J. M. / Rosenfeld, C. / Rostomyan, A. / Rout, N. / Rozanska, M. / Russo, G. / Sahoo, D. / Sakai, Y. / Sanders, D. A. / Sandilya, S. / Sangal, A. / Santelj, L. / Sartori, P. / Sasaki, J. / Sato, Y. / Savinov, V. / Scavino, B. / Schram, M. / Schreeck, H. / Schueler, J. / Schwanda, C. / Schwartz, A. J. / Schwenker, B. / Seddon, R. M. / Seino, Y. / Selce, A. / Senyo, K. / Seong, I. S. / Serrano, J. / Sevior, M. E. / Sfienti, C. / Shebalin, V. / Shen, C. P. / Shibuya, H. / Shiu, J. G. / Shwartz, B. / Sibidanov, A. / Simon, F. / Singh, J. B. / Skambraks, S. / Smith, K. / Sobie, R. J. / Soffer, A. / Sokolov, A. / Soloviev, Y. / Solovieva, E. / Spataro, S. / Spruck, B. / Starič, M. / Stefkova, S. / Stottler, Z. S. / Stroili, R. / Strube, J. / Stypula, J. / Sumihama, M. / Sumisawa, K. / Sumiyoshi, T. / Summers, D. J. / Sutcliffe, W. / Suzuki, K. / Suzuki, S. Y. / Svidras, H. / Tabata, M. / Takahashi, M. / Takizawa, M. / Tamponi, U. / Tanaka, S. / Tanida, K. / Tanigawa, H. / Taniguchi, N. / Tao, Y. / Taras, P. / Tenchini, F. / Tonelli, D. / Torassa, E. / Trabelsi, K. / Tsuboyama, T. / Tsuzuki, N. / Uchida, M. / Ueda, I. / Uehara, S. / Ueno, T. / Uglov, T. / Unger, K. / Unno, Y. / Uno, S. / Urquijo, P. / Ushiroda, Y. / Usov, Y. V. / Vahsen, S. E. / van Tonder, R. / Varner, G. S. / Varvell, K. E. / Vinokurova, A. / Vitale, L. / Vorobyev, V. / Vossen, A. / Wach, B. / Waheed, E. / Wakeling, H. M. / Wan, K. / Abdullah, W. Wan / Wang, B. / Wang, C. H. / Wang, M. Z. / Wang, X. L. / Warburton, A. / Watanabe, M. / Watanuki, S. / Webb, J. / Wehle, S. / Welsch, M. / Wessel, C. / Wiechczynski, J. / Wieduwilt, P. / Windel, H. / Won, E. / Wu, L. J. / Xu, X. P. / Yabsley, B. / Yamada, S. / Yan, W. / Yang, S. B. / Ye, H. / Yelton, J. / Yeo, I. / Yin, J. H. / Yonenaga, M. / Yook, Y. M. / Yoshihara, K. / Yoshinobu, T. / Yuan, C. Z. / Yuan, G. / Yusa, Y. / Zani, L. / Zhang, J. Z. / Zhang, Y. / Zhang, Z. / Zhilich, V. / Zhou, Q. D. / Zhou, X. Y. / Zhukova, V. I. / Zhulanov, V. / Zupanc, A.

    2021  

    Abstract: This note describes the rediscovery of $B\to\eta' K$ decays in Belle II data, both in the charged and neutral final state: $B_0\to\eta' K_S$ and $B^\pm\to\eta' K^\pm$. The $\eta'$ is searched for in two decay modes: $\eta'\to\eta\pi^+\pi^-$ with $\eta\to\ ...

    Abstract This note describes the rediscovery of $B\to\eta' K$ decays in Belle II data, both in the charged and neutral final state: $B_0\to\eta' K_S$ and $B^\pm\to\eta' K^\pm$. The $\eta'$ is searched for in two decay modes: $\eta'\to\eta\pi^+\pi^-$ with $\eta\to\gamma\gamma$, and $\eta'\to\rho\gamma$. The analysis uses data collected in 2019 and 2020 at the SuperKEKB asymmetric $e^+e^-$ collider, with an integrated luminosity of $62.8~fb^{-1}$, corresponding to $68.2$ million of $B\bar{B}$ pairs produced. The signal yield is obtained via an unbinned maximum likelihood fit to signal sensitive variables, obtaining branching ratios: $$\mathcal{B}\left(B^\pm\to\eta'K^\pm\right) = \left(63.4~^{+3.4}_{-3.3}\,(stat)\,\pm3.2\,(syst)\,\right) \times10^{-6} $$ $$\mathcal{B}\left(B_0\to\eta'K_S\right) = \left(59.9~^{+5.8}_{-5.5}\,(stat)\,\pm2.9\,(syst)\,\right) \times10^{-6} $$ which are consistent with world average.

    Comment: 17 pages, 6 figures
    Keywords High Energy Physics - Experiment
    Subject code 551
    Publishing date 2021-04-13
    Publishing country us
    Document type Book ; Online
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  5. Book ; Online: Angular analysis of $B^+ \to \rho^+\rho^0$ decays reconstructed in 2019-2020 Belle II data

    Belle II collaboration / Abudinén, F. / Adachi, I. / Adak, R. / Adamczyk, K. / Ahlburg, P. / Ahn, J. K. / Aihara, H. / Akopov, N. / Aloisio, A. / Ameli, F. / Andricek, L. / Ky, N. Anh / Asner, D. M. / Atmacan, H. / Aulchenko, V. / Aushev, T. / Aushev, V. / Aziz, T. /
    Babu, V. / Bacher, S. / Baehr, S. / Bahinipati, S. / Bakich, A. M. / Bambade, P. / Banerjee, Sw. / Bansal, S. / Barrett, M. / Batignani, G. / Baudot, J. / Beaulieu, A. / Becker, J. / Behera, P. K. / Bender, M. / Bennett, J. V. / Bernieri, E. / Bernlochner, F. U. / Bertemes, M. / Bertholet, E. / Bessner, M. / Bettarini, S. / Bhardwaj, V. / Bhuyan, B. / Bianchi, F. / Bilka, T. / Bilokin, S. / Biswas, D. / Bobrov, A. / Bondar, A. / Bonvicini, G. / Bozek, A. / Brač, M. / Branchini, P. / Braun, N. / Briere, R. A. / Browder, T. E. / Brown, D. N. / Budano, A. / Burmistrov, L. / Bussino, S. / Campajola, M. / Cao, L. / Caria, G. / Casarosa, G. / Cecchi, C. / Č, D. / Chang, M. -C. / Chang, P. / Cheaib, R. / Chekelian, V. / Chen, C. / Chen, Y. Q. / Chen, Y. -T. / Cheon, B. G. / Chilikin, K. / Chirapatpimol, K. / Cho, H. -E. / Cho, K. / Cho, S. -J. / Choi, S. -K. / Choudhury, S. / Cinabro, D. / Corona, L. / Cremaldi, L. M. / Cuesta, D. / Cunliffe, S. / Czank, T. / Dash, N. / Dattola, F. / De La Cruz-Burelo, E. / de Marino, G. / De Nardo, G. / De Nuccio, M. / De Pietro, G. / de Sangro, R. / Deschamps, B. / Destefanis, M. / Dey, S. / De Yta-Hernandez, A. / Di Canto, A. / Di Capua, F. / Di Carlo, S. / Dingfelder, J. / Dolež, Z. / Domí, I. / Dong, T. V. / Dort, K. / Dossett, D. / Dubey, S. / Duell, S. / Dujany, G. / Eidelman, S. / Eliachevitch, M. / Epifanov, D. / Fast, J. E. / Ferber, T. / Ferlewicz, D. / Fillinger, T. / Finocchiaro, G. / Fiore, S. / Fischer, P. / Fodor, A. / Forti, F. / Frey, A. / Friedl, M. / Fulsom, B. G. / Gabriel, M. / Gabyshev, N. / Ganiev, E. / Garcia-Hernandez, M. / Garg, R. / Garmash, A. / Gaur, V. / Gaz, A. / Gebauer, U. / Gelb, M. / Gellrich, A. / Gemmler, J. / Geßler, T. / Getzkow, D. / Giordano, R. / Giri, A. / Glazov, A. / Gobbo, B. / Godang, R. / Goldenzweig, P. / Golob, B. / Gomis, P. / Grace, P. / Gradl, W. / Graziani, E. / Greenwald, D. / Guan, Y. / Gudkova, K. / Hadjivasiliou, C. / Halder, S. / Hara, K. / Hara, T. / Hartbrich, O. / Hayasaka, K. / Hayashii, H. / Hazra, S. / Hearty, C. / Hedges, M. T. / de la Cruz, I. Heredia / Herná, M. / Hershenhorn, A. / Higuchi, T. / Hill, E. C. / Hirata, H. / Hoek, M. / Hohmann, M. / Hollitt, S. / Hotta, T. / Hsu, C. -L. / Hu, Y. / Huang, K. / Humair, T. / Iijima, T. / Inami, K. / Inguglia, G. / Jabbar, J. Irakkathil / Ishikawa, A. / Itoh, R. / Iwasaki, M. / Iwasaki, Y. / Iwata, S. / Jackson, P. / Jacobs, W. W. / Jaegle, I. / Jaffe, D. E. / Jang, E. -J. / Jeandron, M. / Jeon, H. B. / Jia, S. / Jin, Y. / Joo, C. / Joo, K. K. / Junkerkalefeld, H. / Kadenko, I. / Kahn, J. / Kakuno, H. / Kaliyar, A. B. / Kandra, J. / Kang, K. H. / Kapusta, P. / Karl, R. / Karyan, G. / Kato, Y. / Kawai, H. / Kawasaki, T. / Keck, T. / Ketter, C. / Kichimi, H. / Kiesling, C. / Kim, B. H. / Kim, C. -H. / Kim, D. Y. / Kim, H. J. / Kim, K. -H. / Kim, K. / Kim, S. -H. / Kim, Y. -K. / Kim, Y. / Kimmel, T. D. / Kindo, H. / Kinoshita, K. / Kirby, B. / Kleinwort, C. / Knysh, B. / Kodyš, P. / Koga, T. / Kohani, S. / Komarov, I. / Konno, T. / Korobov, A. / Korpar, S. / Kovalchuk, N. / Kovalenko, E. / Kraetzschmar, T. M. G. / Krinner, F. / Križ, P. / Kroeger, R. / Krohn, J. F. / Krokovny, P. / Krüger, H. / Kuehn, W. / Kuhr, T. / Kumar, J. / Kumar, M. / Kumar, R. / Kumara, K. / Kumita, T. / Kunigo, T. / Kü, M. / Kurz, S. / Kuzmin, A. / Kvasnič, P. / Kwon, Y. -J. / Lacaprara, S. / Lai, Y. -T. / La Licata, C. / Lalwani, K. / Lanceri, L. / Lange, J. S. / Laurenza, M. / Lautenbach, K. / Laycock, P. J. / Diberder, F. R. Le / Lee, I. -S. / Lee, S. C. / Leitl, P. / Levit, D. / Lewis, P. M. / Li, C. / Li, L. K. / Li, S. X. / Li, Y. B. / Libby, J. / Lieret, K. / Gioi, L. Li / Lin, J. / Liptak, Z. / Liu, Q. Y. / Liu, Z. A. / Liventsev, D. / Longo, S. / Loos, A. / Lu, P. / Lubej, M. / Lueck, T. / Luetticke, F. / Luo, T. / Lyu, C. / MacQueen, C. / Maeda, Y. / Maggiora, M. / Maity, S. / Manfredi, R. / Manoni, E. / Marcello, S. / Marinas, C. / Martini, A. / Masuda, M. / Matsuda, T. / Matsuoka, K. / Matvienko, D. / McNeil, J. / Meggendorfer, F. / Mei, J. C. / Meier, F. / Merola, M. / Metzner, F. / Milesi, M. / Miller, C. / Miyabayashi, K. / Miyake, H. / Miyata, H. / Mizuk, R. / Azmi, K. / Mohanty, G. B. / Moon, H. / Moon, T. / Grimaldo, J. A. Mora / Morii, T. / Moser, H. -G. / Mrvar, M. / Mueller, F. / Mü, F. J. / Muller, Th. / Muroyama, G. / Murphy, C. / Mussa, R. / Nakagiri, K. / Nakamura, I. / Nakamura, K. R. / Nakano, E. / Nakao, M. / Nakayama, H. / Nakazawa, H. / Nanut, T. / Natkaniec, Z. / Natochii, A. / Nayak, M. / Nazaryan, G. / Neverov, D. / Niebuhr, C. / Niiyama, M. / Ninkovic, J. / Nisar, N. K. / Nishida, S. / Nishimura, K. / Nishimura, M. / Nouxman, M. H. A. / Oberhof, B. / Ogawa, K. / Ogawa, S. / Olsen, S. L. / Onishchuk, Y. / Ono, H. / Onuki, Y. / Oskin, P. / Oxford, E. R. / Ozaki, H. / Pakhlov, P. / Pakhlova, G. / Paladino, A. / Pang, T. / Panta, A. / Paoloni, E. / Pardi, S. / Park, H. / Park, S. -H. / Paschen, B. / Passeri, A. / Pathak, A. / Patra, S. / Paul, S. / Pedlar, T. K. / Peruzzi, I. / Peschke, R. / Pestotnik, R. / Piccolo, M. / Piilonen, L. E. / Podesta-Lerma, P. L. M. / Polat, G. / Popov, V. / Praz, C. / Prell, S. / Prencipe, E. / Prim, M. T. / Purohit, M. V. / Rad, N. / Rados, P. / Raiz, S. / Rasheed, R. / Reif, M. / Reiter, S. / Remnev, M. / Resmi, P. K. / Ripp-Baudot, I. / Ritter, M. / Ritzert, M. / Rizzo, G. / Rizzuto, L. B. / Robertson, S. H. / Rodrí, D. / Roney, J. M. / Rosenfeld, C. / Rostomyan, A. / Rout, N. / Rozanska, M. / Russo, G. / Sahoo, D. / Sakai, Y. / Sanders, D. A. / Sandilya, S. / Sangal, A. / Santelj, L. / Sartori, P. / Sasaki, J. / Sato, Y. / Savinov, V. / Scavino, B. / Schram, M. / Schreeck, H. / Schueler, J. / Schwanda, C. / Schwartz, A. J. / Schwenker, B. / Seddon, R. M. / Seino, Y. / Selce, A. / Senyo, K. / Seong, I. S. / Serrano, J. / Sevior, M. E. / Sfienti, C. / Shebalin, V. / Shen, C. P. / Shibuya, H. / Shiu, J. -G. / Shwartz, B. / Sibidanov, A. / Simon, F. / Singh, J. B. / Skambraks, S. / Smith, K. / Sobie, R. J. / Soffer, A. / Sokolov, A. / Soloviev, Y. / Solovieva, E. / Spataro, S. / Spruck, B. / Starič, M. / Stefkova, S. / Stottler, Z. S. / Stroili, R. / Strube, J. / Stypula, J. / Sumihama, M. / Sumisawa, K. / Sumiyoshi, T. / Summers, D. J. / Sutcliffe, W. / Suzuki, K. / Suzuki, S. Y. / Svidras, H. / Tabata, M. / Takahashi, M. / Takizawa, M. / Tamponi, U. / Tanaka, S. / Tanida, K. / Tanigawa, H. / Taniguchi, N. / Tao, Y. / Taras, P. / Tenchini, F. / Tonelli, D. / Torassa, E. / Trabelsi, K. / Tsuboyama, T. / Tsuzuki, N. / Uchida, M. / Ueda, I. / Uehara, S. / Ueno, T. / Uglov, T. / Unger, K. / Unno, Y. / Uno, S. / Urquijo, P. / Ushiroda, Y. / Usov, Y. V. / Vahsen, S. E. / van Tonder, R. / Varner, G. S. / Varvell, K. E. / Vinokurova, A. / Vitale, L. / Vorobyev, V. / Vossen, A. / Wach, B. / Waheed, E. / Wakeling, H. M. / Wan, K. / Abdullah, W. Wan / Wang, B. / Wang, C. H. / Wang, M. -Z. / Wang, X. L. / Warburton, A. / Watanabe, M. / Watanuki, S. / Webb, J. / Wehle, S. / Welsch, M. / Wessel, C. / Wiechczynski, J. / Wieduwilt, P. / Windel, H. / Won, E. / Wu, L. J. / Xu, X. P. / Yabsley, B. D. / Yamada, S. / Yan, W. / Yang, S. B. / Ye, H. / Yelton, J. / Yeo, I. / Yin, J. H. / Yonenaga, M. / Yook, Y. M. / Yoshihara, K. / Yoshinobu, T. / Yuan, C. Z. / Yuan, G. / Yusa, Y. / Zani, L. / Zhang, J. Z. / Zhang, Y. / Zhang, Z. / Zhilich, V. / Zhou, J. / Zhou, Q. D. / Zhou, X. Y. / Zhukova, V. I. / Zhulanov, V. / Zupanc, A.

    2021  

    Abstract: We report on the first Belle II measurement of the branching fraction ($\mathcal{B}$) and longitudinal polarization fraction ($f_L$) of $B^+\to \rho^+\rho^0$ decays. We reconstruct $B^+\to \rho^+(\to \pi^+\pi^0(\to \gamma\gamma))\rho^0(\to \pi^+\pi^-)$ ... ...

    Abstract We report on the first Belle II measurement of the branching fraction ($\mathcal{B}$) and longitudinal polarization fraction ($f_L$) of $B^+\to \rho^+\rho^0$ decays. We reconstruct $B^+\to \rho^+(\to \pi^+\pi^0(\to \gamma\gamma))\rho^0(\to \pi^+\pi^-)$ decays in a sample of SuperKEKB electron-positron collisions collected by the Belle II experiment in 2019 and 2020 at the $\Upsilon$(4S) resonance and corresponding to $62.8$ fb$^{-1}$ of integrated luminosity. We fit the distributions of the difference between expected and observed $B$ candidate energy, continuum-suppression variable, dipion masses, and angular distributions of the resulting samples, to determine a signal yield of $104\pm16$ events. The signal yields are corrected for efficiencies determined from simulation and control data samples to obtain $\mathcal{B}(B^+ \to \rho^+\rho^0) = [20.6 \pm 3.2(\rm stat) \pm 4.0(\rm syst)]\times 10^{-6}$, and $f_L(B^+ \to \rho^+\rho^0) = 0.936 ^{+0.049}_{-0.041}(\rm stat)\pm 0.021(\rm syst)$. This first Belle II $B^+ \to \rho^+\rho^0$ angular analysis yields results compatible with previous determinations, and indicates Belle II performance superior to early Belle results.
    Keywords High Energy Physics - Experiment ; High Energy Physics - Phenomenology
    Subject code 571
    Publishing date 2021-09-23
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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