Measurement of the B-0 lifetime and flavor-oscillation frequency using hadronic decays reconstructed in 2019-2021 Belle II data

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成果类型：

期刊论文

作者：

Ablikim, M.;Achasov, M. N.;Adlarson, P.;Ahmed, S.;Albrecht, M.;...

通讯作者：

Ablikim, M

作者机构：

[Yu, B. X.; Dai, X. C.; Yu, G.; Hu, T.; Ning, Z.; Lavezzi, L.; Wen, S. P.; Shi, X.; Sun, G. X.; Ma, M. M.; Zhao, Ling; Zhu, Z. A.; Xu, G. F.; Wang, K.; Zhou, L. P.; Heng, Y. K.; Ji, Q.; Zhang, J. W.; Rong, G.; Guan, C. Y.; Zhou, Q.; Wang, Y. F.; Wang, L. L.; Lu, Y.; Ouyang, Q.; Ji, X. B.; Qian, S.; Dong, M. Y.; Zhang, Jiawei; Fang, S. S.; Chang, J. F.; Wang, Zongyuan; Liu, Z. A.; Ke, B. C.; Wu, J. F.; Sun, S. S.; Fu, C. D.; Lou, X. C.; Zhang, B. X.; Fu, Y.; Xing, T. Y.; Cao, G. F.; Xiao, Y. J.; Wu, L. H.; Zhao, Y. B.; Zheng, J. P.; Jiang, X. S.; Kiuchi, R.; Gu, M. H.; Lu, Y. P.; Dong, L. Y.; Yang, S. L.; Zhao, G.; Wu, L. J.; Yang, Yifan; Yuan, Y.; Lu, X. L.; Wu, Z.; Fang, Y.; Luo, X. L.; Ji, X. L.; Zhu, A. N.; Li, L. K.; Li, H. B.; Liang, H.; Liao, L. Z.; Zhang, J. Y.; Yin, J. H.; Liu, Huanhuan; Zhang, J. Z.; He, K. L.; Chen, G.; Xiong, X. A.; Ablikim, M.; Liu, C. X.; Chang, W. L.; Zhu, K.; Kurth, M. G.; Zhao, J. Z.; Mao, Z. P.; Zhao, Q.; Xiao, S. Y.; Lu, J. G.; Chen, Y. B.; Wang, Z.; Ablikim, M; Liu, Fang; Zhao, J. Y.; Dong, J.; Liu, K.; Wang, H. P.; Yuan, C. Z.; Tang, G. Y.; Zhang, H. Y.; Chen, M. L.; Hou, Z. L.; Sun, Y. Z.; Liu, B. J.; Li, Ke; Zhu, K. J.; Liu, H. M.; Ma, H. L.; Sun, T.; Ye, M.; Xie, Y. G.; Lu, J. D.; Zou, B. S.; Chen, H. S.; Cao, N.; Deng, Z. Y.; Ma, Q. M.; Wang, Z. Y.; Cai, X.; Zhang, Y. H.; Ma, R. Q.; Shi, R. S.; Zou, J. H.; Zhang, Yao; Liu, J. Y.; Li, W. G.; Wang, Y. Q.; Mo, X. H.; Fang, J.; Ma, X. X.; Shen, X. Y.; Sun, Z. T.; Liu, T.; Ma, X. Y.; Hu, H. M.; Gong, W. X.; Xu, W.; Hu, Y.; Wang, B.; Wang, Meng; Zhang, L.; Zhang, Jianyu; Li, F.; Pathak, A.; Yang, H. X.; Qin, Z. H.; Li, G.; Ping, R. G.; Qiu, J. F.; Dai, H. L.; Li, W. D.] Inst High Energy Phys, Beijing 100049, Peoples R China.

[Shen, C. P.; Gu, S.; Qi, T. Y.] Beihang Univ, Beijing 100191, Peoples R China.

[Li, Lei] Beijing Inst Petrochem Technol, Beijing 102617, Peoples R China.

[Jaeger, S.; Fritsch, M.; Heinsius, F. H.; Zhang, J. Q.; Weber, T.; Kuessner, M.; Pitka, A.; Pelizaeus, M.; Kopf, B.; Keshk, I. K.; Wollenberg, L.; Qin, X. S.; Albrecht, M.; Holtmann, T.; Schnier, C.; Feldbauer, F.; Wiedner, U.; de Boer, R. B.; Kuemmel, M.; Li, J. Q.; Held, T.] Bochum Ruhr Univ, D-44780 Bochum, Germany.

[Bennett, J., V; Briere, R. A.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.

通讯机构：

[Ablikim, M ] I

Inst High Energy Phys, Beijing 100049, Peoples R China.

语种：

英文

期刊：

PHYSICAL REVIEW D

ISSN：

2470-0010

年：

2023

卷：

107

期：

DOI：

10.1103/PhysRevD.107.L091102

基金类别：

Science Committee of the Republic of Armenia [20TTCG-1C010]; Australian Research Council [DE220100462, DP180102629, DP170102389, DP170102204, DP150103061, FT130100303, FT130100018, FT120100745]; Austrian Federal Ministry of Education, Science and Research, Austrian Science Fund [P 31361-N36, J4625-N]; Horizon 2020 ERC [947006]; Natural Sciences and Engineering Research Council of Canada; Chinese Academy of Sciences [QYZDJ-SSW-SLH011]; National Natural Science Foundation of China [11521505, 11575017, 11675166, 11761141009, 11705209, 11975076]; LiaoNing Revitalization Talents Program [XLYC1807135]; Shanghai Pujiang Program [18PJ1401000]; Shandong Provincial Natural Science Foundation [ZR2022JQ02]; CAS Center for Excellence in Particle Physics (CCEPP); Ministry of Education, Youth, and Sports of the Czech Republic [LTT17020]; Charles University; SVV [260448]; Czech Science Foundation [22-18469S]; European Research Council, Seventh Framework [PIEF-GA-2013-622527, 267104, 884719]; Horizon 2020 ERC-Consolidator [819127]; Horizon 2020 Marie Sklodowska-Curie Grant [700525, 101026516, 822070]; L'Institut National de Physique Nucleaire et de Physique des Particules (IN2P3) du CNRS (France); BMBF; DFG; AvH Foundation (Germany); Department of Atomic Energy [RTI 4002]; Department of Science and Technology (India); Israel Science Foundation [2476/17]; U.S.-Israel Binational Science Foundation [2016113]; Israel Ministry of Science [3-16543]; Istituto Nazionale di Fisica Nucleare [BELLE2]; Japan Society for the Promotion of Science [16H03968, 16H03993, 16H06492, 16K0NETwork 5 (SINET5)]; Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan; National Research Foundation (NRF) of Korea [2016R1D1A1B02012900, 2018R1A2B300 3643, 2018R1A6A1A06024970, 2018R1D1A1 B07047294, 2019R1I1A3A01058933, 2022R1 A2C1003993, RS-2022-00197659]; Universiti Malaya RU grant; Akademi Sains Malaysia; Ministry of Education Malaysia; Frontiers of Science Program [FOINS-296, CB-221329, CB-236394, CB-254409, CB-180023, 237]; Polish Ministry of Science and Higher Education; National Science Center; Ministry of Science and Higher Education of the Russian Federation [14, W03.31.0026]; HSE University Basic Research Program, Moscow; University of Tabuk research [S-0256-1438, S-0280-1439]; Slovenian Research Agency [J1-9124, P1-0135]; Agencia Estatal de Investigacion, Spain [RYC2020-029875-I]; Generalitat Valenciana, Spain [CIDEGENT/2018/020]; Ministry of Science and Technology [MOST106-2112-M-002-005-MY3, MOST107-2119-M-002-035-MY3]; Ministry of Education (Taiwan); Thailand Center of Excellence in Physics; National Research Foundation of Ukraine [2020.02/0257]; Ministry of Education and Science of Ukraine; U.S. National Science Foundation [PHY-1913789, PHY-2111604]; U.S. Department of Energy [DE-AC06-76RLO1830, DE-SC0007983, DE-SC0009824, DE-SC0009973, DE-SC0010007, DE-SC0010073, DE-SC0010118, DE-SC0010504, DE-SC0011784, DE-SC0012704, DE-SC0019230, DE-SC0021274, DE-SC0022350]; Vietnam Academy of Science and Technology (VAST) [DL0000.05/21-23]; INFN; University of Victoria

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摘要：

We measure the B-0 lifetime and flavor-oscillation frequency using B-0 -> D(*)-x+ decays collected by the Belle II experiment in asymmetric-energy e+e- collisions produced by the SuperKEKB collider operating at the T(4S) 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 zB(0) = (1.499 +/- 0.013 +/- 0.008) ps, Amd = (0.516 +/- 0.008 +/- 0.005) ps(-1), where the first uncertainti...

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Measurement of the B-0 lifetime and flavor-oscillation frequency using hadronic decays reconstructed in 2019-2021 Belle II data

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