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Precise measurement of the branching fractions of J/ψ → (Λ)over-barπ+Σ-+c.c. and J/ψ → (Λ)over-barπ-Σ++c.c.

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成果类型:
期刊论文
作者:
Ablikim, M.;Achasov, M. N.;Adlarson, P.;Aliberti, R.;Amoroso, A.;...
通讯作者:
Ablikim, M
作者机构:
[Yu, B. X.; Yu, G.; Li, Xiaoyu; Hu, T.; Ning, Z.; Zhang, P.; Wen, S. P.; Shi, X.; Sun, G. X.; Ma, M. M.; Zhao, Ling; Chen, T.; Zhu, Z. A.; Xu, G. F.; Wang, K.; Zhou, L. P.; Heng, Y. K.; Ji, Q.; Zhang, J. W.; Rong, G.; Guan, C. Y.; Qi, F. Z.; Wang, Y. F.; Wang, L. L.; Ouyang, Q.; Zhang, A. Q.; Ji, X. B.; Qian, S.; Dong, M. Y.; Zhang, Jiawei; Fang, S. S.; Chang, J. F.; Liu, Z. A.; Yan, X. Q.; Wu, J. F.; Wang, Yaqian; Sun, S. S.; Ding, B.; Fu, C. D.; Lou, X. C.; Lin, T.; Zhang, B. X.; Xing, T. Y.; Cao, G. F.; Wu, L. H.; Zhao, Y. B.; Fu, Y. W.; Zheng, J. P.; Jiang, X. S.; Kiuchi, R.; Gu, M. H.; Lu, Y. P.; Dong, L. Y.; Zhang, H. Q.; Zhao, G.; Wu, L. J.; Li, L. J.; Yang, Yifan; Yuan, Y.; Lu, X. L.; Wu, Z.; Fang, Y.; Luo, X. L.; Ji, X. L.; Zhang, X. M.; Li, L. K.; Li, H. B.; Liang, H.; Huang, Y. P.; Zhang, J. Y.; Yin, J. H.; Batozskaya, V.; Liu, Huanhuan; Song, W. M.; Chen, X. T.; Zhang, J. Z.; He, K. L.; Chen, G.; Ablikim, M.; Liu, C. X.; Chang, W. L.; Zhu, K.; Zhao, J. Z.; Yang, Tao; Mao, Z. P.; Xiao, S. Y.; Lu, J. G.; Liu, P. L.; Jing, M. Q.; Sun, H. K.; Chen, Y. B.; Zhang, Shuihan; Wang, Z.; Ablikim, M; Liu, Fang; Zhao, J. Y.; Dong, J.; Liu, K.; Shi, J. Y.; Wang, H. P.; Yuan, C. Z.; Tang, G. Y.; Yuan, S. C.; Zhang, H. Y.; Chen, M. L.; Zhang, Z. H.; Hou, G. Y.; Shen, H. F.; Shao, L. G.; Hou, Z. L.; Sun, Y. Z.; Liu, B. J.; Li, Ke; Zhu, K. J.; Liu, H. M.; Xu, C. F.; Ma, H. L.; Sun, T.; Ye, M.; Xie, Y. G.; Chen, H. S.; Cao, N.; Deng, Z. Y.; Ma, Q. M.; Wang, Z. Y.; Cai, X.; Yuan, X. Q.; Zhang, Y. H.; Ma, R. Q.; Shi, R. S.; Zheng, W. J.; Zou, J. H.; Zhang, Yao; Liu, J. Y.; Li, W. G.; Wang, Y. Q.; Mo, X. H.; Fang, J.; Shen, X. Y.; Ma, X. Y.; Hu, H. M.; Gong, W. X.; Xu, W.; Hu, Y.; Wang, B.; Zhang, B. L.; Ma, J. L.; Wang, Meng; Yang, Y. X.; Miao, H.; Li, F.; Lu, Z. H.; Yang, H. X.; Qin, Z. H.; Li, G.; Ping, R. G.; Qiu, J. F.; Dai, H. L.; Li, W. D.; Fang, W. X.; Zeng, Y. J.] Inst High Energy Phys, Beijing 100049, Peoples R China.
[Yuan, L.] Beihang Univ, Beijing 100191, Peoples R China.
[Li, Lei] Beijing Inst Petrochem Technol, Beijing 102617, Peoples R China.
[Jaeger, S.; Fritsch, M.; Wiedner, U. W.; Pelizaeus, M.; Kuessner, M. K.; Kopf, B.; Wollenberg, L.; Holtmann, T.; de Boer, R. E.; Feldbauer, F.; Heinsius, F. H. H.; Maldaner, S.; Coen, S. C.; Wenzel, C. W.] Bochum Ruhr Univ, D-44780 Bochum, Germany.
[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:
108
期:
11
基金类别:
National Key R&D Program of China [2020YFA0406300, 2020YFA0406400]; National Natural Science Foundation of China (NSFC) [11635010, 11735014, 11835012, 11935015, 11935016, 11935018, 11961141012, 12022510, 12025502, 12035009, 12035013, 12061131003, 12150004, 12192260, 12192261, 12192262, 12192263, 12192264, 12192265, 12221005, 12225509, 12235017]; Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; CAS Center for Excellence in Particle Physics (CCEPP); CAS Key Research Program of Frontier Sciences [QYZDJ-SSW-SLH003, QYZDJ-SSW-SLH040]; The 100 Talents Program of CAS; Institute of Nuclear and Particle Physics (INPAC); Shanghai Key Laboratory for Particle Physics and Cosmology; German Research Foundation DFG under Collaborative Research Center [758462]; ERC; European Union's Horizon 2020 research and innovation programme under Marie Sklodowska-Curie grant [894790]; German Research Foundation DFG [443159800, 455635585, GRK 2149, DPT2006K120470]; Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Development of Turkey [NRF-2022R1A2C1092335]; National Research Foundation of Korea [B16F640076]; National Science and Technology fund of Mongolia; National Science Research and Innovation Fund (NSRF) via the Program Management Unit for Human Resources & Institutional Development, Research and Innovation of Thailand [2019/35/O/ST2/02907]; Polish National Science Centre [DE-FG02-05ER41374]; Swedish Research Council; U.S. Department of Energy [CRC 1044]; [FOR5327]
机构署名:
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摘要:
Based on a data sample of (10087 +/- 44) x 10(6) J=psi events collected with the BESIII detector, the branching fraction of J/psi -> (Lambda) over bar pi E-+(-) + c.c. is measured to be (1.221 +/- 0.002 +/- 0.038) x 10(-3), and the branching fraction of its isospin partner mode J/psi -> (Lambda) over bar pi E--(+) + c.c. is measured to be (1.244 +/- 0.002 +/- 0.045) x 10(-3) with improved precision. Here the first uncertainties are statistical and the second ones systematic. The isospin symmetry of the E baryon in charmonium hadronic decay and the "12% rule" are tested, and no violation is fou...

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