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Measurements of the absolute branching fractions of Ω- decays and test of the ΔI=1/2 rule

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成果类型:
期刊论文
作者:
Ablikim, M.;Achasov, M. N.;Adlarson, P.;Ai, X. C.;Aliberti, R.;...
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.; Hou, X. 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.; Liao, Y. P.; 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; Rivetti, A.; 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; Du, M. C.; 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.; Sarantsev, A.; 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.; Kuessner, M.; Pelizaeus, M.; Kopf, B.; Wollenberg, L.; Holtmann, T.; de Boer, R. E.; Feldbauer, F.; Wiedner, U.; Heinsius, F. H. H.; Coen, S. C.; Wenzel, C. W.] Bochum Ruhr Univ, D-44780 Bochum, Germany.
[Achasov, M. N.; Nikolaev, I. B.; Muchnoi, N. Yu.] Budker Inst Nucl Phys SB RAS BINP, Novosibirsk 630090, Russia.
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:
9
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, 12022510, 12035013, 12192261, 12192264, 12225509, 12235017]; Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; CAS Center for Excellence in Particle Physics (CCEPP); Joint Large-Scale Scientific Facility Funds of the NSFC and CAS [U1832207]; 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) and Shanghai Key Laboratory for Particle Physics and Cosmology; ERC [758462]; European Union [894790]; German Research Foundation DFG [455635585, FOR5327, GRK 2149, DPT2006K-120470]; Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Development of Turkey [CRC 1044]; National Research Foundation of Korea [NRF-2022R1A2C1092335]; 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 [B16F640076]; Polish National Science Centre [2019/35/O/ST2/02907]; Swedish Research Council; U.S. Department of Energy [DE-FG02-05ER41374]
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摘要:
Based on a dataset of (27.12 +/- 0.10) x 10(8) psi(3686) events collected at the BESIII experiment, the absolute branching fractions of the three dominant Omega(-) decays are measured to be B Omega-->Xi 0 pi- = (25.03 +/- 0.44 +/- 0.53) %, B Omega-->Xi-pi 0 = (8.43 +/- 0.52 +/- 0.28) %, and B Omega-->Lambda K- = (66.3 +/- 0.8 +/- 2.0) %, where the first and second uncertainties are statistical and systematic, respectively. The ratio between B Omega-->Xi 0 pi- and B Omega-->Xi-pi 0 is determined to be 2.97 +/- 0.19 +/- 0.11, which is in good agreement with the PDG value of 2.74 +/- 0.15, but gr...

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