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Search for baryon and lepton number violating decays of ?0 hyperons

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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; 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.; Zhang, J. Z.; He, K. L.; Nisar, S.; 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.; Zhang, Shuihan; Wang, Z.; Ablikim, M; Liu, Fang; K, X.; 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.; H, X. T.; 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.; Chen, C.; 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.
[Chen, Chao; 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:
1
基金类别:
National Key R&D Program of China [2020YFA0406400, 2020YFA0406300]; National Natural Science Foundation of China (NSFC) [11635010, 11735014, 11835012, 11935015, 11935016, 11935018, 11961141012, 12022510, 12025502]; 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]; 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 [443159800, 455635585]; Collaborative Research Center CRC [1044, FOR5327, GRK 2149]; Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Development of Turkey [DPT2006K-120470]; National Research Foundation of Korea [NRF-2022R1A2C1092335]; National Science and Technology fund of Mongolia; National Science Research and Innovation Fund (NSRF) [B16F640076]; Polish National Science Centre [2019/35/O/ST2/02907]; Royal Society, UK [DH160214]; Swedish Research Council; U.S. Department of Energy [DE-FG02-05ER41374]; Youth Science Fund of Henan Normal University [2021QK12]; NSFC [11947038]; High Performance Computing Center of Henan Normal University
机构署名:
本校为其他机构
摘要:
Using o1.0087 similar to 0.0044THORN x 1010 J=. events collected by the BESIII detector at the BEPCII collider, we report the first search for the baryon and lepton number violating decays.0. K-ethorn with.oB - LTHORN 1/4 0 and.0. Kthorne- with j.oB - LTHORNj 1/4 2, where B (L) is the baryon (lepton) number. While no signal is observed, the upper limits on the branching fractions of these two decays are set to Bo.0. K-ethornTHORN < 3.6 x 10- 6 and Bo.0. Kthorne- THORN < 1.9 x 10- 6 at the 90% confidence level, respectively. These results offer a direct pr...

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