Measurement of the B0 lifetime and flavor-oscillation frequency using hadronic decays reconstructed in 2019–2021 Belle II data

Abudinén, F.; Adachi, I.; Aggarwal, L.; Ahmed, H.; Aihara, H.; Akopov, N.; Aloisio, A.; Anh Ky, N.; Asner, D. M.; Atmacan, H.; Aushev, T.; Aushev, V.; Bae, H.; Bahinipati, S.; Bambade, P.; Banerjee, Sw.; Bansal, S.; Barrett, M.; Baudot, J.; Bauer, M.; Baur, A.; Beaubien, A.; Becker, J.; 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.; Borah, J.; Bozek, A.; Bračko, M.; Briere, R. A.; Browder, T. E.; Budano, A.; Bussino, S.; Campajola, M.; Cao, L.; Casarosa, G.; Cecchi, C.; Cerasoli, J.; Chang, P.; Cheema, P.; Chekelian, V.; Chen, C.; Cheon, B. G.; Chilikin, K.; Chirapatpimol, K.; Cho, H. -E.; Cho, K.; Cho, S. -J.; Choi, S. -K.; Choudhury, S.; Cochran, J.; Corona, L.; Cunliffe, S.; 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.; Destefanis, M.; De Yta-Hernandez, A.; Dhamija, R.; Di Canto, A.; Di Capua, F.; Dingfelder, J.; Doležal, Z.; Domínguez Jiménez, I.; Dong, T. V.; Dorigo, M.; Dort, K.; Dossett, D.; Dreyer, S.; Dubey, S.; Dujany, G.; Ecker, P.; Eliachevitch, M.; Epifanov, D.; Feichtinger, P.; Ferber, T.; Ferlewicz, D.; Fillinger, T.; Finocchiaro, G.; Fodor, A.; Forti, F.; Frey, A.; Fulsom, B. G.; Gabrielli, A.; Ganiev, E.; Garcia-Hernandez, M.; Gaudino, G.; Gaur, V.; Gaz, A.; Gellrich, A.; Ghevondyan, G.; Ghosh, D.; Giakoustidis, G.; Giordano, R.; Giri, A.; Glazov, A.; Gobbo, B.; Godang, R.; Goldenzweig, P.; Gradl, W.; Grammatico, T.; Granderath, S.; Graziani, E.; Greenwald, D.; Gruberová, Z.; Gu, T.; Gudkova, K.; Halder, S.; Hara, K.; Hara, T.; Hayasaka, K.; Hayashii, H.; Hazra, S.; Hearty, C.; Hedges, M. T.; Heredia de la Cruz, I.; Hernández Villanueva, M.; Hershenhorn, A.; Higuchi, T.; Hill, E. C.; Hohmann, M.; Hsu, C. -L.; Humair, T.; Iijima, T.; Inami, K.; Ipsita, N.; Ishikawa, A.; Ito, S.; Itoh, R.; Iwasaki, M.; Jacobs, W. W.; Jaffe, D. E.; Jang, E. -J.; Ji, Q. P.; Jia, S.; Jin, Y.; Junkerkalefeld, H.; Kaleta, M.; Kaliyar, A. B.; Kang, K. H.; Karyan, G.; Kawasaki, T.; Kiesling, C.; Kim, C. -H.; Kim, D. Y.; Kim, K. -H.; Kim, Y. -K.; Kindo, H.; Kodyš, P.; Koga, T.; Kohani, S.; Kojima, K.; Korobov, A.; Korpar, S.; Kovalenko, E.; Kowalewski, R.; Križan, P.; Krokovny, P.; Kuhr, T.; Kumar, J.; Kumar, R.; Kumara, K.; Kunigo, T.; Kuzmin, A.; Kwon, Y. -J.; Lacaprara, S.; Lange, J. S.; Laurenza, M.; Leboucher, R.; Le Diberder, F. R.; Leitl, P.; Levit, D.; Lewis, P. M.; Li, L. K.; Libby, J.; Liptak, Z.; Liu, Q. Y.; Liu, Z. Q.; Liventsev, D.; Longo, S.; Lueck, T.; Lyu, C.; Ma, Y.; Maggiora, M.; Maharana, S. P.; Maiti, R.; Maity, S.; Manfredi, R.; Manoni, E.; Manthei, A. C.; Mantovano, M.; Marcantonio, D.; Marcello, S.; Marinas, C.; Martel, L.; Martellini, C.; Martini, A.; Martinov, T.; Massaccesi, L.; Masuda, M.; Matsuoka, K.; Matvienko, D.; Maurya, S. K.; McKenna, J. A.; Meier, F.; Merola, M.; Metzner, F.; Milesi, M.; Miller, C.; Miyabayashi, K.; Miyake, H.; Mizuk, R.; Mohanty, G. B.; Molina-Gonzalez, N.; Moneta, S.; Moser, H. -G.; Mrvar, M.; Mussa, R.; Nakamura, I.; Nakamura, K. R.; Nakao, M.; Nakazawa, Y.; Narimani Charan, A.; Naruki, M.; Narwal, D.; Natochii, A.; Nayak, L.; Nazaryan, G.; Niebuhr, C.; Nisar, N. K.; Nishida, S.; Ogawa, S.; Ono, H.; Onuki, Y.; Oskin, P.; Pakhlov, P.; Pakhlova, G.; Paladino, A.; Panta, A.; Pardi, S.; Parham, K.; Park, J.; Park, S. -H.; Paschen, B.; Passeri, A.; Patra, S.; Paul, S.; Pedlar, T. K.; Peruzzi, I.; Peschke, R.; Pestotnik, R.; Pham, F.; Piilonen, L. E.; Pinna Angioni, G.; Podesta-Lerma, P. L.  M.; Podobnik, T.; Pokharel, S.; Polat, L.; Praz, C.; Prell, S.; Prencipe, E.; Prim, M. T.; Purwar, H.; Rad, N.; Rados, P.; Raeuber, G.; Raiz, S.; Reif, M.; Reiter, S.; Ripp-Baudot, I.; Rizzo, G.; Rizzuto, L. B.; Roney, J. M.; Rostomyan, A.; Rout, N.; Sakai, Y.; Sanders, D. A.; Sandilya, S.; Sangal, A.; Santelj, L.; Sato, Y.; Scavino, B.; Schmitt, C.; Schwanda, C.; Schwartz, A. J.; Seino, Y.; Selce, A.; Senyo, K.; Serrano, J.; Sevior, M. E.; Sfienti, C.; Shan, W.; Sharma, C.; Shen, C. P.; Shillington, T.; Shiu, J. -G.; Shtol, D.; Simon, F.; Singh, J. B.; Skorupa, J.; Sobie, R. J.; Soffer, A.; Solovieva, E.; Spataro, S.; Spruck, B.; Starič, M.; Stefkova, S.; Stroili, R.; Sue, Y.; Sumihama, M.; Sutcliffe, W.; Suzuki, S. Y.; Svidras, H.; Takahashi, M.; Takizawa, M.; Tamponi, U.; Tanaka, S.; Tanida, K.; Tanigawa, H.; Taniguchi, N.; Tenchini, F.; Tiwary, R.; Tonelli, D.; Torassa, E.; Trabelsi, K.; Tsaklidis, I.; Uchida, M.; Ueda, I.; Uematsu, Y.; Uglov, T.; Unger, K.; Unno, Y.; Uno, K.; Uno, S.; Urquijo, P.; Ushiroda, Y.; Vahsen, S. E.; van Tonder, R.; Varner, G. S.; Varvell, K. E.; Vinokurova, A.; Vismaya, V. S.; Vitale, L.; Vobbilisetti, V.; Vossen, A.; Wakai, M.; Wakeling, H. M.; Wallner, S.; Wang, E.; Wang, M. -Z.; Wang, X. L.; Wang, Z.; Warburton, A.; Watanabe, M.; Watanuki, S.; Welsch, M.; Wessel, C.; Won, E.; 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.; Yusa, Y.; Zani, L.; Zhai, Y.; Zhang, Y.; Zhilich, V.; Zhou, Q. D.; Zhou, X. Y.; Zhukova, V. I.; Žlebčík, R.

doi:10.1103/physrevd.107.l091102

Measurement of the B⁰ lifetime and flavor-oscillation frequency using hadronic decays reconstructed in 2019–2021 Belle II data

Journal Article · Mon May 15 00:00:00 EDT 2023 · Physical Review. D.

DOI:https://doi.org/10.1103/physrevd.107.l091102· OSTI ID:2419783

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OSTI

We measure the B0 lifetime and flavor-oscillation frequency using B⁰ → D(*)^–π⁺ decays collected by the Belle II experiment in asymmetric-energy e⁺⁢e^– collisions produced by the SuperKEKB collider operating at the Υ⁡(4⁢S) resonance. We fit the decay-time distribution of signal decays, where the initial flavor is determined by identifying the flavor of the other B meson in the event. The results, based on 33000 signal decays reconstructed in a data sample corresponding to 190 fb^–1, are τ_B⁰ = (1.499 ± 0.013 ± 0.008) ps, Δ⁢m_d = (0.516 ± 0.008 ± 0.005) ps^–1, where the first uncertainties are statistical and the second are systematic. These results are consistent with the world-average values.

View Accepted Manuscript (DOE)

Research Organization:: Battelle Memorial Institute, Columbus, OH (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States); Carnegie Mellon Univ., Pittsburgh, PA (United States); Duke Univ., Durham, NC (United States); Univ. of Cincinnati, OH (United States); Univ. of Florida, Gainesville, FL (United States); Univ. of Hawaii, Honolulu, HI (United States); Univ. of Louisville, KY (United States); Univ. of Mississippi, Oxford, MS (United States); Univ. of South Carolina, Columbia, SC (United States); Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States); Wayne State Univ., Detroit, MI (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Contributing Organization:: The Belle II Collaboration

Grant/Contract Number:: AC06-76RL01830; SC0007983; SC0009824; SC0009973; SC0010007; SC0010073; SC0010118; SC0010504; SC0011784; SC0012704; SC0019230; SC0021274; SC0022350

OSTI ID:: 2419783

Journal Information:: Physical Review. D., Journal Name: Physical Review. D. Journal Issue: 9 Vol. 107; ISSN 2470-0010

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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