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Measurement of the absolute branching fraction of inclusive semielectronic Ds+ decays

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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.;...
作者机构:
[Yu, B. X.; Dai, X. C.; Yu, G.; Li, Xiaoyu; Hu, T.; Ning, Z.; 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.; Zhang, A. 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.; Xing, T. Y.; Cao, G. F.; Wu, L. H.; Zhao, Y. B.; Zheng, J. P.; Jiang, X. S.; Kiuchi, R.; Gu, M. H.; Lu, Y. P.; Dong, L. Y.; 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.; Huang, Y. P.; Liao, L. Z.; Zhang, J. Y.; Yin, J. H.; Liu, Huanhuan; Song, W. M.; Zhang, J. Z.; He, K. L.; Chen, G.; 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.; Liu, P. L.; Jing, M. Q.; Sun, H. K.; Chen, Y. B.; Wang, Z.; 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, G. Y.; Shen, H. F.; 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, 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.
[Yuan, L.] 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.; Kuessner, M.; Pelizaeus, M.; Kopf, B.; Keshk, I. K.; Wollenberg, L.; Albrecht, M.; Holtmann, T.; Schnier, C.; de Boer, R. E.; Feldbauer, F.; Wiedner, U.; Kuemmel, M.; Li, J. Q.; Held, T.; Maldaner, S.] Bochum Ruhr Univ, D-44780 Bochum, Germany.
[Briere, R. A.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.
语种:
英文
期刊:
PHYSICAL REVIEW D
ISSN:
2470-0010
年:
2021
卷:
104
期:
1
页码:
012003
基金类别:
National Key Research and Development Program of China [2020YFA0406400, 2020YFA0406300]; National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC) [11625523, 11635010, 11735014, 11822506, 11835012, 11935015, 11935016, 11935018, 11961141012]; Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility ProgramChinese Academy of Sciences; Joint Large-Scale Scientific Facility Funds of the NSFC; CASChinese Academy of Sciences [U1732263, U1832207]; CAS Key Research Program of Frontier Sciences [QYZDJ-SSW-SLH040]; 100 Talents Program of CASChinese Academy of Sciences; INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology; ERCEuropean Research Council (ERC)European Commission [758462]; European UnionEuropean Commission [894790]; German Research Foundation DFGGerman Research Foundation (DFG) [443159800]; Collaborative Research Center [CRC 1044, FOR 2359, GRK 214]; Istituto Nazionale di Fisica Nucleare, ItalyIstituto Nazionale di Fisica Nucleare (INFN); Ministry of Development of TurkeyTurkiye Cumhuriyeti Kalkinma Bakanligi [DPT2006K-120470]; National Science and Technology fund; Olle Engkvist Foundation [200-0605]; STFC (United Kingdom)UK Research & Innovation (UKRI)Science & Technology Facilities Council (STFC); Knut and Alice Wallenberg Foundation (Sweden)Knut & Alice Wallenberg Foundation [2016.0157]; Royal Society, UKRoyal Society of London [DH140054, DH160214]; Swedish Research CouncilSwedish Research CouncilEuropean Commission; U.S. Department of EnergyUnited States Department of Energy (DOE) [DE-FG02-05ER41374, DE-SC-0012069]
机构署名:
本校为其他机构
摘要:
We measure the inclusive semielectronic decay branching fraction of the D-s(+) meson. A double-tag technique is applied to e(+)e(-) annihilation data collected by the BESIII experiment at the BEPCII collider, operating in the center-of-mass energy range 4.178-4.230 GeV. We select positrons from D (+)(s) -> Xe+nu(e) with momenta greater than 200 MeV/c and determine the laboratory momentum spectrum, accounting for the effects of detector efficiency and resolution. The total positron yield and semielectronic branching fraction are determined by extrapolating this spectrum below the momentum cutof...

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