Measurement of the $B$$^{-}$ $\\rightarrow$ $D$$^{0}$$\\ell$$^{-}$$\\bar{\\nu}$$_{\\ell}$ Branching Fraction in 62.8 fb$^{-1}$ of Belle II data
Year: 2021
Type: preprint
Abstract: We report a measurement of the branching fraction of the semileptonic decay $B$$^{-}$ $\rightarrow$ $D$$^{0}$$\ell$$^{-}$$\bar{\nu}$$_{\ell}$ (and its charge conjugate) using 62.8 fb$^{-1}$ of $\Upsilon$(4$S$) $\rightarrow$ $B$$\bar{B}$ data recorded by the Belle II experiment at the SuperKEKB asymmetric-energy $e$$^{+}$ $e$$^{-}$ collider. The neutral charm meson is searched for in the decay mode $D$$^{0}$ $\rightarrow$ $K$$^{-}$ $\pi$$^{+}$ and combined with a properly charged identified lepton (electron or muon) to reconstruct this decay. No reconstruction of the second $B$ meson in the $\Upsilon$(4$S$) event is performed. We obtain $B$($D$$^{0}$$\ell$$^{-}$$\bar{\nu}$$_{\ell}$) = (2.29 $\pm$ 0.05 $_{stat}$ $\pm$ 0.08$_{syst}$, in agreement with the world average of this decay. We also determine the ratio of the electron to muon branching fractions to be $R$($e$/$\mu$) = 1.04 $\pm$ 0.05$_{stat}$ $\pm$ 0.03$_{syst}$ and observe no deviation from lepton universality.
Source: HAL
Authors: Abudinén, F., Adachi, I., Adak, R., Adamczyk, K., Aggarwal, L., Ahlburg, P., Ahmed, H., Ahn, J.K., Aihara, H., Akopov, N., Aloisio, A., Ameli, F., Andricek, L., Anh Ky, N., Asner, D.M., Atmacan, H., Aulchenko, V., Aushev, T., Aushev, V., Aziz, T., Babu, V., Bacher, S., Bae, H., Baehr, S., Bahinipati, S., Bakich, A.M., Bambade, P., Banerjee, Sw., Bansal, S., Barrett, M., Batignani, G., Baudot, J., Bauer, M., Baur, A., Beaulieu, A., Becker, J., Behera, P.K., 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., Bodrov, D., Bolz, 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., Domínguez Jiménez, I., Dong, T.V., Dorigo, M., 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., Gabrielli, A., Gabyshev, N., Ganiev, E., Garcia-Hernandez, M., Garg, R., Garmash, A., Gaur, V., Gaz, A., Gebauer, U., Gellrich, A., Gemmler, J., Geßler, T., Getzkow, D., Giordano, R., Giri, A., Glazov, A., Gobbo, B., Godang, R., Goldenzweig, P., Golob, B., Gomis, P., Gong, G., Grace, P., Gradl, W., Graziani, E., Greenwald, D., Gu, T., 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, Hernández Villanueva, 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., Oo, 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., 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., Kleinwort, C., Knysh, B., Kodyšs, P., Koga, T., Kohani, S., Komarov, I., Konno, T., Korobov, A., Korpar, S., Kovalchuk, N., Kovalenko, E., Kowalewski, R., 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., Lam, T., Lanceri, L., Lange, J.S., Laurenza, M., Lautenbach, K., Laycock, P.J., Le Diberder, F.R., 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., Lin, J., Liptak, Z., Liu, Q.Y., Liu, Z.A., Liventsev, D., Longo, S., Loos, A., Lozar, A., Lu, P., 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., Mckenna, J.A., 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., Mora Grimaldo, J.A., Morii, T., Moser, H.G., Mrvar, M., Mueller, F., Müller, F.J., Muller, Th., Muroyama, G., Murphy, C., Mussa, R., Nakamura, I., Nakamura, K.R., Nakano, E., Nakao, M., Nakayama, H., Nakazawa, H., 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., Pham, F., Piccolo, M., Piilonen, L.E., Angioni, G. Pinna, 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., 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., 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., Sugiura, R., 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., Tiwary, R., Tonelli, D., Torassa, E., Toutounji, N., Trabelsi, K., Tsuboyama, T., Tsuzuki, N., Uchida, M., Ueda, I., Uehara, S., Uematsu, Y., Ueno, T., 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., 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, E., 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.
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funders: National Science Foundation, U.S. Department of Energy, Alexander von Humboldt-Stiftung, Univerzita Karlova v Praze, Canarie, University of Tabuk, Vietnam Academy of Science and Technology, Thailand Center of Excellence in Physics, Compute Canada, National Research Foundation of Ukraine, National Research Foundation, Deutsche Forschungsgemeinschaft, Ministry of Education, Culture, Sports, Science and Technology, United States-Israel Binational Science Foundation, National Natural Science Foundation of China, Bundesministerium für Bildung und Forschung, Chinese Academy of Sciences, Austrian Science Fund, Generalitat Valenciana, Korea Institute of Science and Technology, Korea Institute of Science and Technology Information, Max-Planck-Gesellschaft, Javna Agencija za Raziskovalno Dejavnost RS, Türkiye Bilimsel ve Teknolojik Araştırma Kurumu, Centre National de la Recherche Scientifique, National Research University Higher School of Economics, Ministry of Education and Science of Ukraine, Ministry of Science and Higher Education of the Russian Federation, National Institute of Informatics, Istituto Nazionale di Fisica Nucleare, Bundesministerium für Bildung, Wissenschaft und Forschung, CAS Center for Excellence in Particle Physics, Liaoning Revitalization Talents Program, Korea Research Environment Open Network, Natural Sciences and Engineering Research Council of Canada, Deutsches Elektronen-Synchrotron, Japan Society for the Promotion of Science, Akademi Sains Malaysia, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Institut National de Physique Nucléaire et de Physique des Particules
Awards: G1138632649, G1466111314, G1842629209, G1913364353, G1978791907, Search for New Physics by Global Analysis, G2029582843, G2060860243, G241279073, G2668241615, G2916289761, G2970209555, G2983470692, G3046200081, G3133150994, G3136143680, Study of the structure for tau lepton flavor on Belle II, G326497735, G3296619115, Experimental Nuclear Physics and Fundamental Interactions at Indiana University, G3614130489, G3614640056, G3812116678, G4045687426, G414574686, オルガノボラン(有機ほう素化合物)を用いる新しい有機合成に関する研究, Quark-hadron duality in B meson semileptonic decays, G4671393316, G468091213, G4715320936, Road toward the next standard model explored with muon precision physics, RUI: Studies of Heavy Quarkonium Spectroscopy with Belle and Belle II, G5259210140, G5273183856, G5284057119, Experimental Particle Physics, G5671187699, 赤芽球フェリチンの構造と機能に関する研究, G5765906131, G5838019525, G5880907162, G5954829367, G5958906545, G5988284195, GOALI/Collaborative Research: Scheduling Methodologies for Electronics and Hardware Manufacturing, G608581630, Searches for Dark Matter and Dark Forces at Belle II, Probing New Physics with Tau-Lepton, G7032149085, Fundamental aspects of new physics search in precision spectroscopy, Advanced hadron identification methods for Belle II, Search for New Symmetry Violation in Leptons, 東アフリカにおける旧石器文化の成立と展開に関する学術調査(第2回), G7932278931, Top quark mass and Yukawa coupling determinations at ILC, G8099446405, G8135762793, Precise measurement of muonium HFS for new physics search hunting, G8251449677, G8363112480, G8373305038, G853546207, G8537746564, G8588022911, G872144517, G8815364470, G8908444087, World's best sensitivities of new physics searches with Electroweak Penguin B decays and development of light-weight and fast-readout pixel detector
OpenAlex ID: W4221154498