학술논문

Determination of $|V_{cb}|$ from $B\to D\ell\nu$ decays using 2019-2021 Belle II data
Document Type
Working Paper
Author
Belle II collaborationAbudinén, F.Adachi, I.Adamczyk, K.Aggarwal, L.Ahlburg, P.Ahmed, H.Ahn, J. K.Aihara, H.Akopov, N.Aloisio, A.Ameli, F.Andricek, L.Ky, N. AnhAsner, 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.Beaubien, A.Beaulieu, A.Becker, J.Behera, P. K.Bennett, J. V.Bernieri, E.Bernlochner, F. U.Bertacchi, V.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.Casarosa, G.Cecchi, C.Červenkov, D.Chang, M. -C.Chang, P.Cheaib, R.Cheema, P.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.Cunliffe, S.Czank, T.Das, S.Dash, N.Dattola, F.De La Cruz-Burelo, E.De La Motte, S. A.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.Dhamija, R.Di Canto, A.Di Capua, F.Di Carlo, S.Dingfelder, J.Doležal, Z.Jiménez, I. DomínguezDong, T. V.Dorigo, M.Dort, K.Dossett, D.Dreyer, S.Dubey, S.Duell, S.Dujany, G.Ecker, P.Eidelman, S.Eliachevitch, M.Epifanov, D.Feichtinger, P.Ferber, T.Ferlewicz, D.Fillinger, T.Finck, C.Finocchiaro, G.Fischer, P.Flood, K.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.Ghevondyan, G.Giakoustidis, G.Giordano, R.Giri, A.Glazov, A.Gobbo, B.Godang, R.Goldenzweig, P.Golob, B.Gomis, P.Gong, G.Grace, P.Gradl, W.Granderath, S.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.Hedges, M. T.de la Cruz, I. HerediaVillanueva, M. HernándezHershenhorn, A.Higuchi, T.Hill, E. C.Hirata, H.Hoek, M.Hohmann, M.Hollitt, S.Horak, P.Hotta, T.Hsu, C. -L.Huang, K.Humair, T.Iijima, T.Inami, K.Inguglia, G.Ipsita, N.Jabbar, J. IrakkathilIshikawa, A.Ito, S.Itoh, R.Iwasaki, M.Iwasaki, Y.Iwata, S.Jackson, P.Jacobs, W. W.Jaffe, D. E.Jang, E. -J.Jeandron, M.Jeon, H. B.Ji, Q. P.Jia, S.Jin, Y.Joo, C.Joo, K. K.Junkerkalefeld, H.Kadenko, I.Kahn, J.Kakuno, H.Kaleta, M.Kaliyar, A. B.Kandra, J.Kang, K. H.Kang, S.Kapusta, P.Karl, R.Karyan, G.Kato, Y.Kawai, H.Kawasaki, T.Ketter, C.Kichimi, H.Kiesling, C.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.Kodyš, P.Koga, T.Kohani, S.Kojima, K.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.Leboucher, R.Diberder, F. R. LeLee, 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.Maggiora, M.Maiti, R.Maity, S.Manfredi, R.Manoni, E.Manthei, A.Marcello, S.Marinas, C.Martel, L.Martini, A.Massaccesi, L.Masuda, M.Matsuda, T.Matsuoka, K.Matvienko, D.McKenna, J. A.McNeil, J.Meggendorfer, F.Meier, F.Merola, M.Metzner, F.Milesi, M.Miller, C.Miyabayashi, K.Miyake, H.Miyata, H.Mizuk, R.Azmi, K.Mohanty, G. B.Molina-Gonzalez, N.Moneta, S.Moon, H.Moon, T.Grimaldo, J. A. MoraMorii, T.Moser, H. -G.Mrvar, M.Müller, F. J.Muller, Th.Muroyama, G.Murphy, C.Mussa, R.Nakamura, I.Nakamura, K. R.Nakano, E.Nakao, M.Nakayama, H.Nakazawa, H.Charan, A. NarimaniNaruki, M.Natkaniec, Z.Natochii, A.Nayak, L.Nayak, M.Nazaryan, G.Neverov, D.Niebuhr, C.Niiyama, M.Ninkovic, J.Nisar, N. K.Nishida, S.Nishimura, K.Nouxman, M. H. A.Ogawa, K.Ogawa, S.Olsen, S. L.Onishchuk, Y.Ono, H.Onuki, Y.Oskin, P.Otani, F.Oxford, E. R.Ozaki, H.Pakhlov, P.Pakhlova, G.Paladino, A.Pang, T.Panta, A.Paoloni, E.Pardi, S.Parham, K.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. PinnaPodesta-Lerma, P. L. M.Podobnik, T.Pokharel, S.Polat, L.Popov, V.Praz, C.Prell, S.Prencipe, E.Prim, M. T.Purohit, M. V.Purwar, H.Rad, N.Rados, P.Raiz, S.Morales, A. RamirezRasheed, R.Rauls, N.Reif, M.Reiter, S.Remnev, M.Ripp-Baudot, I.Ritter, M.Ritzert, M.Rizzo, G.Rizzuto, L. B.Robertson, S. H.Pérez, D. RodríguezRoney, 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.Schnepf, M.Schram, M.Schreeck, H.Schueler, J.Schwanda, C.Schwartz, A. J.Schwenker, B.Schwickardi, M.Seino, Y.Selce, A.Senyo, K.Seong, I. S.Serrano, J.Sevior, M. E.Sfienti, C.Shebalin, V.Shen, C. P.Shibuya, H.Shillington, T.Shimasaki, T.Shiu, J. -G.Shwartz, B.Sibidanov, A.Simon, F.Singh, J. B.Skambraks, S.Skorupa, J.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.Sue, Y.Sugiura, R.Sumihama, M.Sumisawa, K.Sumiyoshi, T.Sutcliffe, W.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.Tsaklidis, I.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.Vobbilisetti, V.Vorobyev, V.Vossen, A.Wach, B.Waheed, E.Wakeling, H. M.Wan, K.Abdullah, W. WanWang, 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.Yin, J. H.Yonenaga, M.Yook, Y. M.Yoshihara, K.Yoshinobu, T.Yuan, C. Z.Yusa, Y.Zani, L.Zhai, Y.Zhang, J. Z.Zhang, Y.Zhang, Z.Zhilich, V.Zhou, J.Zhou, Q. D.Zhou, X. Y.Zhukova, V. I.Zhulanov, V.
Source
Subject
High Energy Physics - Experiment
Language
Abstract
We present a determination of the magnitude of the Cabibbo-Kobayashi-Maskawa (CKM) matrix element $V_{cb}$ using $B\to D\ell\nu$ decays. The result is based on $e^+e^-\to\Upsilon(4S)$ data recorded by the Belle II detector corresponding to 189.2/fb of integrated luminosity. The semileptonic decays $B^0\to D^-(\to K^+\pi^-\pi^-)\ell^+\nu_\ell$ and $B^+\to\bar D^0(\to K^+\pi^-)\ell^+\nu_\ell$ are reconstructed, where $\ell$ is either electron or a muon. The second $B$ meson in the $\Upsilon(4S)$ event is not explicitly reconstructed. Using the diamond-frame method, we determine the $B$ meson four-momentum and thus the hadronic recoil. We extract the partial decay rates as functions of $w$ and perform a fit to the decay form-factor and the CKM parameter $|V_{cb}|$ using the BGL parameterization of the form factor and lattice QCD input from the FNAL/MILC and HPQCD collaborations. We obtain $\eta_{EW}|V_{cb}|=(38.53\pm 1.15)\times 10^{-3}$, where $\eta_{EW}$ is an electroweak correction, and the error accounts for theoretical and experimental sources of uncertainty.
Comment: 20 pages, 4 figures