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Measurement of the absolute branching fraction for Λ+c → μ+νμ

Medina Ablikim, Mikhail N. Achasov, Samer Ahmed, X.C. Ai, O. Albayrak, Malte Albrecht, D.J. Ambrose, Antonio Amoroso, F.F. An, Q. An, J.Z. Bai, Olga Bakina, Rinaldo Baldini Ferroli, Yong Ban, D.W. Bennett, J.V. Bennett, Niklaus Berger, Monica Bertani, Diego Bettoni, J.M. Bian, Fabrizio Bianchi, E. Boger, Igor R. Boyko, Roy A. Briere, H. Cai, X. Cai, O. Cakir, Alessandro Calcaterra, G.F. Cao, Serkant Ali Çetin, Jinfan Chang, Gueorgui A. Chelkov, G. Chen, Hesheng Chen, J.C. Chen, M.L. Chen, S. Chen, S.J. Chen, X. Chen, X.R. Chen, Yuanbo Chen, X.K. Chu, Gianluigi Cibinetto, Hongliang Dai, J.P. Dai, Alaa Dbeyssi, Dmitri V. Dedovich, Ziyan Deng, Achim Denig, Igor Denysenko, Marco Giovanni Maria Destefanis, Francesca De Mori, Y. Ding, C. Dong, J. Dong, Liaoyuan Dong, Mingyi Dong, Z.L. Dou, Shuxian Du, P.F. Duan, J.Z. Fan, J. Fang, Shuangshi Fang, X. Fang, Y. Fang, Riccardo Farinelli, Luciano Fava, Florian Feldbauer, Giulietto Felici, C.Q. Feng, Elisa Fioravanti, Miriam Fritsch, Chengdong Fu, Q. Gao, X.L. Gao, Y. Gao, Z. Gao, I. Garzia, Klaus Goetzen, L. Gong, Wenxuan Gong, Wolfgang Gradl, M. Greco, Minhao Gu, Y.T. Gu, Y.H. Guan, Aiqiang Guo, L.B. Guo, R.P. Guo, Y. Guo, Yuping Guo, Z. Haddadi, A. Hafner, S. Han, Xiqing Hao, F.A. Harris, K.L. He, Fritz-Herbert Heinsius, T. Held, Yuekun Heng, Tobias Holtmann, Zhilong Hou, C. Hu, Haiming Hu, J.F. Hu, T. Hu, Y. Hu, G.S. Huang, J.S. Huang, X.T. Huang, X.Z. Huang, Z.L. Huang, Tahir Hussain, Walter Ikegami Andersson, Quan Ji, Qingping Ji, X.B. Ji, X.L. Ji, L.W. Jiang, Xiaoshan Jiang, X.Y. Jiang, J.B. Jiao, Z. Jiao, D.P. Jin, Shan Jin, Tord Johansson, A. Julin, Nasser Kalantar-Nayestanaki, Xiaolin Kang, X.S. Kang, Myroslav O. Kavatsyuk, B.C. Ke, P. Kiese, Ralf Kliemt, B. Kloss, Onur Bugra Kolcu, Bertram Kopf, M. Kornicer, Andrzej Kupsc, Wolfgang Kühn, Jens Sören Lange, M. Lara, Paul Larin, Lia Lavezzi, H. Leithoff, C. Leng, C. Li, Li Cheng, D.M. Li, F. Li, F.Y. Li, G. Li, Haibo Li, H.J. Li, J.C. Li, Jin Li, K. Li, K. Li, Lei. Li, P.R. Li, Q.Y. Li, T. Li, Weidong Li, Weiguo Li, X.L. Li, X.N. Li, X.Q. Li, Y.B. Li, Z.B. Li, H. Liang, Y.F. Liang, Y.T. Liang, G.R. Liao, D.X. Lin, B. Liu, B.J. Liu, C.X. Liu, D. Liu, Fu-Hu Liu, Fang Liu, Feng Liu, H.B. Liu, H.H. Liu, H.H. Liu, H.M. Liu, J. Liu, J.B. Liu, J.P. Liu, J.Y. Liu, K. Liu, K.Y. Liu, L.D. Liu, P.L. Liu, Q. Liu, Q.J. Liu, S.B. Liu, X. Liu, Y.B. Liu, Y.Y. Liu, Zhen-An Liu, Z.Q. Liu, H. Loehner, Xinchou Lou, H.J. Lu, Junguang Lu, Y. Lu, Yunpeng Lu, Chenglin Luo, M.X. Luo, T. Luo, X.L. Luo, Xiao-Rui Lyu, Fengcai Ma, H.L. Ma, Lianliang Ma, M.M. Ma, Qiumei Ma, T. Ma, X.N. Ma, Xiaoyan Ma, Y.M. Ma, Frank E. Maas, Marco Maggiora, Q.A. Malik, Yajun Mao, Zepu Mao, Simonetta Marcello, Johannes Gerhardus Messchendorp, Giulio Mezzadri, J. Min, T.J. Min, Ryan Edward Mitchell, Xiaohu Mo, Y.J. Mo, C. Morales Morales, Nikolai Yu. Muchnoi, H. Muramatsu, P. Musiol, Yury Nefedov, Frank Nerling, Ivan Borisovich Nikolaev, Z. Ning, Shabana Nisar, S.L. Niu, X.Y. Niu, Stephen L. Olsen, Qun Ouyang, Simone Pacetti, Y. Pan, P. Patteri, Marc Pelizäus, H.P. Peng, Klaus Peters, J. Pettersson, J.L. Ping, R.G. Ping, Ronald Poling, Vindhyawasini Prasad, H.R. Qi, Ming Qi, S. Qian, Congfeng Qiao, L.Q. Qin, N. Qin, X.S. Qin, Zhonghua Qin, Jinfa Qiu, K.H. Rashid, Christoph Florian Redmer, M. Ripka, Gang Rong, Christoph Rosner, X.D. Ruan, Andrei V. Sarantsev, M. Savrié, Claudius Schnier, Karin Schönning, Wei Shan, M. Shao, C.P. Shen, P.X. Shen, X.Y. Shen, H.Y. Sheng, W.M. Song, X.Y. Song, Stefano Sosio, Stefano Spataro, Gongxing Sun, J.F. Sun, S.S. Sun, X.H. Sun, Y.J. Sun, Y.Z. Sun, Z.J. Sun, Z.T. Sun, C.J. Tang, X. Tang, I. Tapan, E.H. Thorndike, M. Tiemens, Ismail Uman, G.S. Varner, B. Wang, B.L. Wang, D. Wang, D.Y. Wang, K. Wang, L.L. Wang, L.S. Wang, M. Wang, P. Wang, P.L. Wang, W. Wang, W.P. Wang, X.F. Wang, Y. Wang, Y.D. Wang, Y.F. Wang, Y.Q. Wang, Z. Wang, Z.G. Wang, Z.H. Wang, Z.Y. Wang, T. Weber, D.H. Wei, P. Weidenkaff, Shuopin Wen, Ulrich Wiedner, Magnus Wolke, L.H. Wu, L.J. Wu, Z. Wu, L. Xia, L.G. Xia, Y. Xia, D. Xiao, H. Xiao, Zhenjun Xiao, Y.G. Xie, Xie Yuehong, Q.L. Xiu, Guofa Xu, J.J. Xu, L. Xu, Q.J. Xu, Q.N. Xu, Xinping Xu, L. Yan, W.B. Yan, W.C. Yan, Y.H. Yan, H.J. Yang, Hongxun Yang, L. Yang, Yongxu Yang, M. Ye, Minghan Ye, J.H. Yin, Z.Y. You, Boxiang Yu, C.X. Yu, J.S. Yu, Chang-Zheng Yuan, Y. Yuan, A. Yuncu, A.A. Zafar, Y. Zeng, Z. Zeng, B.X. Zhang, B.Y. Zhang, C.C. Zhang, D.H. Zhang, H.H. Zhang, Hongyu Zhang, J. Zhang, J.J. Zhang, J.L. Zhang, J.Q. Zhang, J.W. Zhang, Jianyong Zhang, J.Z. Zhang, K. Zhang, L. Zhang, S.Q. Zhang, X.Y. Zhang, Y. Zhang, Y.H. Zhang, Y.N. Zhang, Y.T. Zhang, Yu Zhang, Z.H. Zhang, Z.P. Zhang, Z.Y. Zhang, G. Zhao, J.W. Zhao, J.Y. Zhao, J.Z. Zhao, Lei Zhao, Ling Zhao, Ming-Gang Zhao, Q. Zhao, Q.W. Zhao, Shujun Zhao, T.C. Zhao, Yubin Zhao, Zhengguo Zhao, Alexey Zhemchugov, B. Zheng, Jianping Zheng, W.J. Zheng, Y.H. Zheng, B. Zhong, L. Zhou, X. Zhou, X.K. Zhou, X.R. Zhou, X.Y. Zhou, K. Zhu, Kejun Zhu, S. Zhu, S.H. Zhu, X.L. Zhu, Y.C. Zhu, Y.S. Zhu, Zian Zhu, J. Zhuang, L. Zotti, B.S. Zou, Jiaheng Zou

  • We report the first measurement of the absolute branching fraction for Λ+c→Λμ+νμ. This measurement is based on a sample of e+e− annihilation data at a center-of-mass energy of s√=4.6 GeV collected with the BESIII detector at the BEPCII storage rings. The sample corresponds to an integrated luminosity of 567 pb−1. The branching fraction is determined to be B(Λ+c→Λμ+νμ)=(3.49±0.46(stat)±0.27(syst))%. In addition, we calculate the ratio B(Λ+c→Λμ+νμ)/B(Λ+c→Λe+νe) to be 0.96±0.16(stat)±0.04(syst).

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Author:Medina AblikimORCiD, Mikhail N. AchasovORCiD, Samer AhmedGND, X.C. Ai, O. Albayrak, Malte AlbrechtORCiDGND, D.J. Ambrose, Antonio AmorosoORCiD, F.F. An, Q. An, J.Z. Bai, Olga Bakina, Rinaldo Baldini Ferroli, Yong BanORCiD, D.W. Bennett, J.V. Bennett, Niklaus BergerORCiDGND, Monica BertaniORCiD, Diego BettoniORCiD, J.M. Bian, Fabrizio BianchiORCiD, E. Boger, Igor R. BoykoORCiD, Roy A. BriereORCiD, H. Cai, X. Cai, O. Cakir, Alessandro CalcaterraORCiD, G.F. Cao, Serkant Ali ÇetinORCiD, Jinfan ChangORCiD, Gueorgui A. ChelkovORCiD, G. Chen, Hesheng ChenORCiD, J.C. Chen, M.L. Chen, S. Chen, S.J. Chen, X. Chen, X.R. Chen, Yuanbo ChenORCiD, X.K. Chu, Gianluigi CibinettoORCiD, Hongliang DaiORCiD, J.P. Dai, Alaa DbeyssiORCiD, Dmitri V. Dedovich, Ziyan DengORCiD, Achim DenigORCiD, Igor Denysenko, Marco Giovanni Maria DestefanisORCiDGND, Francesca De MoriORCiD, Y. Ding, C. Dong, J. Dong, Liaoyuan DongORCiD, Mingyi DongORCiD, Z.L. Dou, Shuxian Du, P.F. Duan, J.Z. Fan, J. Fang, Shuangshi FangORCiD, X. Fang, Y. Fang, Riccardo FarinelliORCiD, Luciano FavaORCiD, Florian FeldbauerGND, Giulietto FeliciORCiD, C.Q. Feng, Elisa FioravantiORCiD, Miriam FritschORCiDGND, Chengdong FuORCiD, Q. Gao, X.L. Gao, Y. Gao, Z. Gao, I. Garzia, Klaus GoetzenORCiDGND, L. Gong, Wenxuan GongORCiD, Wolfgang GradlORCiDGND, M. Greco, Minhao GuORCiD, Y.T. Gu, Y.H. Guan, Aiqiang GuoORCiD, L.B. Guo, R.P. Guo, Y. Guo, Yuping GuoORCiD, Z. Haddadi, A. Hafner, S. Han, Xiqing Hao, F.A. Harris, K.L. He, Fritz-Herbert HeinsiusORCiDGND, T. Held, Yuekun HengORCiD, Tobias HoltmannGND, Zhilong HouORCiD, C. Hu, Haiming HuORCiD, J.F. Hu, T. Hu, Y. Hu, G.S. Huang, J.S. Huang, X.T. Huang, X.Z. Huang, Z.L. Huang, Tahir HussainORCiD, Walter Ikegami AnderssonORCiD, Quan JiORCiD, Qingping JiORCiD, X.B. Ji, X.L. Ji, L.W. Jiang, Xiaoshan JiangORCiD, X.Y. Jiang, J.B. Jiao, Z. Jiao, D.P. Jin, Shan JinORCiD, Tord JohanssonORCiD, A. Julin, Nasser Kalantar-NayestanakiORCiD, Xiaolin KangORCiD, X.S. Kang, Myroslav O. Kavatsyuk, B.C. Ke, P. Kiese, Ralf KliemtORCiD, B. Kloss, Onur Bugra KolcuORCiD, Bertram KopfGND, M. Kornicer, Andrzej KupscORCiD, Wolfgang KühnORCiD, Jens Sören LangeORCiDGND, M. Lara, Paul LarinGND, Lia LavezziORCiD, H. Leithoff, C. Leng, C. Li, Li Cheng, D.M. Li, F. Li, F.Y. Li, G. Li, Haibo LiORCiD, H.J. Li, J.C. Li, Jin Li, K. Li, K. Li, Lei. Li, P.R. Li, Q.Y. Li, T. Li, Weidong LiORCiD, Weiguo LiORCiD, X.L. Li, X.N. Li, X.Q. Li, Y.B. Li, Z.B. Li, H. Liang, Y.F. Liang, Y.T. Liang, G.R. Liao, D.X. Lin, B. Liu, B.J. Liu, C.X. Liu, D. Liu, Fu-Hu LiuORCiD, Fang Liu, Feng Liu, H.B. Liu, H.H. Liu, H.H. Liu, H.M. Liu, J. Liu, J.B. Liu, J.P. Liu, J.Y. Liu, K. Liu, K.Y. Liu, L.D. Liu, P.L. Liu, Q. Liu, Q.J. Liu, S.B. Liu, X. Liu, Y.B. Liu, Y.Y. Liu, Zhen-An LiuORCiDGND, Z.Q. Liu, H. Loehner, Xinchou LouORCiD, H.J. Lu, Junguang LuORCiD, Y. Lu, Yunpeng LuORCiD, Chenglin LuoORCiD, M.X. Luo, T. Luo, X.L. Luo, Xiao-Rui LyuORCiD, Fengcai Ma, H.L. Ma, Lianliang MaORCiD, M.M. Ma, Qiumei MaORCiD, T. Ma, X.N. Ma, Xiaoyan MaORCiD, Y.M. Ma, Frank E. MaasORCiDGND, Marco MaggioraORCiD, Q.A. Malik, Yajun Mao, Zepu Mao, Simonetta MarcelloORCiD, Johannes Gerhardus MesschendorpORCiDGND, Giulio MezzadriORCiD, J. Min, T.J. Min, Ryan Edward Mitchell, Xiaohu MoORCiD, Y.J. Mo, C. Morales Morales, Nikolai Yu. MuchnoiORCiDGND, H. Muramatsu, P. Musiol, Yury NefedovORCiD, Frank NerlingORCiD, Ivan Borisovich NikolaevORCiD, Z. Ning, Shabana Nisar, S.L. Niu, X.Y. Niu, Stephen L. OlsenORCiD, Qun OuyangORCiD, Simone PacettiORCiD, Y. Pan, P. Patteri, Marc PelizäusGND, H.P. Peng, Klaus PetersORCiDGND, J. Pettersson, J.L. Ping, R.G. Ping, Ronald PolingORCiD, Vindhyawasini PrasadORCiD, H.R. Qi, Ming QiORCiD, S. Qian, Congfeng Qiao, L.Q. Qin, N. Qin, X.S. Qin, Zhonghua QinORCiD, Jinfa QiuORCiD, K.H. Rashid, Christoph Florian RedmerORCiDGND, M. Ripka, Gang RongORCiD, Christoph RosnerORCiDGND, X.D. Ruan, Andrei V. SarantsevGND, M. Savrié, Claudius SchnierGND, Karin SchönningORCiD, Wei ShanORCiD, M. Shao, C.P. Shen, P.X. Shen, X.Y. Shen, H.Y. Sheng, W.M. Song, X.Y. Song, Stefano SosioORCiD, Stefano SpataroORCiD, Gongxing SunORCiD, J.F. Sun, S.S. Sun, X.H. Sun, Y.J. Sun, Y.Z. Sun, Z.J. Sun, Z.T. Sun, C.J. Tang, X. Tang, I. Tapan, E.H. Thorndike, M. Tiemens, Ismail UmanORCiDGND, G.S. Varner, B. Wang, B.L. Wang, D. Wang, D.Y. Wang, K. Wang, L.L. Wang, L.S. Wang, M. Wang, P. Wang, P.L. Wang, W. Wang, W.P. Wang, X.F. Wang, Y. Wang, Y.D. Wang, Y.F. Wang, Y.Q. Wang, Z. Wang, Z.G. Wang, Z.H. Wang, Z.Y. Wang, T. Weber, D.H. Wei, P. Weidenkaff, Shuopin WenORCiD, Ulrich WiednerORCiDGND, Magnus WolkeGND, L.H. Wu, L.J. Wu, Z. Wu, L. Xia, L.G. Xia, Y. Xia, D. Xiao, H. Xiao, Zhenjun XiaoORCiD, Y.G. Xie, Xie Yuehong, Q.L. Xiu, Guofa XuORCiD, J.J. Xu, L. Xu, Q.J. Xu, Q.N. Xu, Xinping XuORCiD, L. Yan, W.B. Yan, W.C. Yan, Y.H. Yan, H.J. Yang, Hongxun YangORCiD, L. Yang, Yongxu Yang, M. Ye, Minghan Ye, J.H. Yin, Z.Y. You, Boxiang YuORCiD, C.X. Yu, J.S. Yu, Chang-Zheng YuanORCiD, Y. Yuan, A. Yuncu, A.A. Zafar, Y. Zeng, Z. Zeng, B.X. Zhang, B.Y. Zhang, C.C. Zhang, D.H. Zhang, H.H. Zhang, Hongyu ZhangORCiD, J. Zhang, J.J. Zhang, J.L. Zhang, J.Q. Zhang, J.W. Zhang, Jianyong ZhangORCiD, J.Z. Zhang, K. Zhang, L. Zhang, S.Q. Zhang, X.Y. Zhang, Y. Zhang, Y.H. Zhang, Y.N. Zhang, Y.T. Zhang, Yu Zhang, Z.H. Zhang, Z.P. Zhang, Z.Y. Zhang, G. Zhao, J.W. Zhao, J.Y. Zhao, J.Z. Zhao, Lei ZhaoORCiD, Ling Zhao, Ming-Gang ZhaoORCiD, Q. Zhao, Q.W. Zhao, Shujun Zhao, T.C. Zhao, Yubin ZhaoORCiD, Zhengguo ZhaoORCiD, Alexey ZhemchugovORCiD, B. Zheng, Jianping ZhengORCiD, W.J. Zheng, Y.H. Zheng, B. Zhong, L. Zhou, X. Zhou, X.K. Zhou, X.R. Zhou, X.Y. Zhou, K. Zhu, Kejun ZhuORCiD, S. Zhu, S.H. Zhu, X.L. Zhu, Y.C. Zhu, Y.S. Zhu, Zian ZhuORCiD, J. Zhuang, L. Zotti, B.S. Zou, Jiaheng ZouORCiD
URN:urn:nbn:de:hebis:30:3-845319
DOI:https://doi.org/10.1016/j.physletb.2017.01.047
ISSN:0370-2693
ArXiv Id:http://arxiv.org/abs/1611.04382
Parent Title (English):Physics Letters B
Publisher:Elsevier
Place of publication:Amsterdam
Document Type:Article
Language:English
Date of Publication (online):2017/01/27
Year of first Publication:2017
Embargo Date:2017/01/31
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Creating Corporation:BESIII Collaboration
Release Date:2024/06/22
Volume:767.2017
Page Number:6
First Page:42
Last Page:47
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Sammlungen:Universitätspublikationen
Licence (German):License LogoCreative Commons - CC BY - Namensnennung 4.0 International