التفاصيل البيبلوغرافية
العنوان:
Measurement of the phase between strong and electromagnetic amplitudes of J/ψ decays
المؤلفون:
M. Ablikim , M.N. Achasov , S. Ahmed , M. Albrecht , A. Amoroso , F.F. An , Q. An , Y. Bai , O. Bakina , R. Baldini Ferroli , Y. Ban , D.W. Bennett , J.V. Bennett , N. Berger , M. Bertani , D. Bettoni , J.M. Bian , F. Bianchi , E. Boger , I. Boyko , R.A. Briere , H. Cai , X. Cai , O. Cakir , A. Calcaterra , G.F. Cao , S.A. Cetin , J. Chai , J.F. Chang , G. Chelkov , G. Chen , H.S. Chen , J.C. Chen , M.L. Chen , P.L. Chen , S.J. Chen , X.R. Chen , Y.B. Chen , X.K. Chu , G. Cibinetto , H.L. Dai , J.P. Dai , A. Dbeyssi , D. Dedovich , Z.Y. Deng , A. Denig , I. Denysenko , M. Destefanis , F. De Mori , Y. Ding , C. Dong , J. Dong , L.Y. Dong , M.Y. Dong , Z.L. Dou , S.X. Du , P.F. Duan , J. Fang , S.S. Fang , X. Fang , Y. Fang , R. Farinelli , L. Fava , S. Fegan , F. Feldbauer , G. Felici , C.Q. Feng , E. Fioravanti , M. Fritsch , C.D. Fu , Q. Gao , X.L. Gao , Y. Gao , Y.G. Gao , Z. Gao , I. Garzia , K. Goetzen , L. Gong , W.X. Gong , W. Gradl , M. Greco , M.H. Gu , S. Gu , Y.T. Gu , A.Q. Guo , L.B. Guo , R.P. Guo , Y.P. Guo , Z. Haddadi , S. Han , X.Q. Hao , F.A. Harris , K.L. He , F.H. Heinsius , T. Held , Y.K. Heng , T. Holtmann , Z.L. Hou , C. Hu , H.M. Hu , T. Hu , Y. Hu , G.S. Huang , J.S. Huang , X.T. Huang , X.Z. Huang , Z.L. Huang , T. Hussain , W. Ikegami Andersson , Q. Ji , Q.P. Ji , X.B. Ji , X.L. Ji , X.S. Jiang , X.Y. Jiang , J.B. Jiao , Z. Jiao , D.P. Jin , S. Jin , Y. Jin , T. Johansson , A. Julin , N. Kalantar-Nayestanaki , X.L. Kang , X.S. Kang , M. Kavatsyuk , B.C. Ke , T. Khan , A. Khoukaz , P. Kiese , R. Kliemt , L. Koch , O.B. Kolcu , B. Kopf , M. Kornicer , M. Kuemmel , M. Kuessner , M. Kuhlmann , A. Kupsc , W. Kühn , J.S. Lange , M. Lara , P. Larin , L. Lavezzi , S. Leiber , H. Leithoff , C. Leng , C. Li , Cheng Li , D.M. Li , F. Li , F.Y. Li , G. Li , H.B. Li , H.J. Li , J.C. Li , K.J. Li , Kang Li , Ke Li , Lei Li , P.L. Li , P.R. Li , Q.Y. Li , T. Li , W.D. Li , W.G. Li , X.L. Li , X.N. Li , X.Q. 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 , F.H. Liu , Fang Liu , Feng Liu , H.B. Liu , H.M. Liu , Huanhuan Liu , Huihui Liu , J.B. Liu , J.P. Liu , J.Y. Liu , K. Liu , K.Y. Liu , Ke Liu , L.D. Liu , P.L. Liu , Q. Liu , S.B. Liu , X. Liu , Y.B. Liu , Z.A. Liu , Zhiqing Liu , Y.F. Long , X.C. Lou , H.J. Lu , J.G. Lu , Y. Lu , Y.P. Lu , C.L. Luo , M.X. Luo , X.L. Luo , X.R. Lyu , F.C. Ma , H.L. Ma , L.L. Ma , M.M. Ma , Q.M. Ma , T. Ma , X.N. Ma , X.Y. Ma , Y.M. Ma , F.E. Maas , M. Maggiora , Q.A. Malik , Y.J. Mao , Z.P. Mao , S. Marcello , Z.X. Meng , J.G. Messchendorp , G. Mezzadri , J. Min , T.J. Min , R.E. Mitchell , X.H. Mo , Y.J. Mo , C. Morales Morales , G. Morello , N.Yu. Muchnoi , H. Muramatsu , A. Mustafa , Y. Nefedov , F. Nerling , I.B. Nikolaev , Z. Ning , S. Nisar , S.L. Niu , X.Y. Niu , S.L. Olsen , Q. Ouyang , S. Pacetti , Y. Pan , M. Papenbrock , P. Patteri , M. Pelizaeus , J. Pellegrino , H.P. Peng , K. Peters , J. Pettersson , J.L. Ping , R.G. Ping , A. Pitka , R. Poling , V. Prasad , H.R. Qi , M. Qi , S. Qian , C.F. Qiao , N. Qin , X.S. Qin , Z.H. Qin , J.F. Qiu , K.H. Rashid , C.F. Redmer , M. Richter , M. Ripka , M. Rolo , G. Rong , Ch. Rosner , X.D. Ruan , A. Sarantsev , M. Savrié , C. Schnier , K. Schoenning , W. Shan , M. Shao , C.P. Shen , P.X. Shen , X.Y. Shen , H.Y. Sheng , J.J. Song , W.M. Song , X.Y. Song , S. Sosio , C. Sowa , S. Spataro , G.X. Sun , J.F. Sun , L. Sun , S.S. Sun , X.H. Sun , Y.J. Sun , Y.K. Sun , Y.Z. Sun , Z.J. Sun , Z.T. Sun , C.J. Tang , G.Y. Tang , X. Tang , I. Tapan , M. Tiemens , B. Tsednee , I. Uman , G.S. Varner , B. Wang , B.L. Wang , D. Wang , D.Y. Wang , Dan Wang , K. Wang , L.L. Wang , L.S. Wang , M. Wang , Meng Wang , P. Wang , P.L. 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 , Zongyuan Wang , T. Weber , D.H. Wei , P. Weidenkaff , S.P. Wen , U. Wiedner , M. Wolke , L.H. Wu , L.J. Wu , Z. Wu , L. Xia , X. Xia , Y. Xia , D. Xiao , H. Xiao , Y.J. Xiao , Z.J. Xiao , Y.G. Xie , Y.H. Xie , X.A. Xiong , Q.L. Xiu , G.F. Xu , J.J. Xu , L. Xu , Q.J. Xu , Q.N. Xu , X.P. Xu , L. Yan , W.B. Yan , W.C. Yan , Y.H. Yan , H.J. Yang , H.X. Yang , L. Yang , Y.H. Yang , Y.X. Yang , Yifan Yang , M. Ye , M.H. Ye , J.H. Yin , Z.Y. You , B.X. Yu , C.X. Yu , J.S. Yu , C.Z. Yuan , Y. Yuan , A. Yuncu , A.A. Zafar , A. Zallo , Y. Zeng , Z. Zeng , B.X. Zhang , B.Y. Zhang , C.C. Zhang , D.H. Zhang , H.H. Zhang , H.Y. Zhang , J. Zhang , J.L. Zhang , J.Q. Zhang , J.W. Zhang , J.Y. Zhang , J.Z. Zhang , K. Zhang , L. Zhang , S.Q. Zhang , X.Y. Zhang , Y.H. Zhang , Y.T. Zhang , Yang Zhang , Yao 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 , M.G. Zhao , Q. Zhao , S.J. Zhao , T.C. Zhao , Y.B. Zhao , Z.G. Zhao , A. Zhemchugov , B. Zheng , J.P. Zheng , W.J. Zheng , Y.H. Zheng , B. Zhong , L. Zhou , X. Zhou , X.K. Zhou , X.R. Zhou , X.Y. Zhou , Y.X. Zhou , J. Zhu , K. Zhu , K.J. Zhu , S. Zhu , S.H. Zhu , X.L. Zhu , Y.C. Zhu , Y.S. Zhu , Z.A. Zhu , J. Zhuang , B.S. Zou , J.H. Zou
المصدر:
Physics Letters B, Vol 791, Iss , Pp 375-384 (2019)
بيانات النشر:
Elsevier, 2019.
سنة النشر:
2019
المجموعة:
LCC:Physics
مصطلحات موضوعية:
Physics , QC1-999
الوصف:
Using 16 energy points of e+e− annihilation data collected in the vicinity of the J/ψ resonance with the BESIII detector and with a total integrated luminosity of around 100pb−1, we study the relative phase between the strong and electromagnetic amplitudes of J/ψ decays. The relative phase between J/ψ electromagnetic decay and the continuum process (e+e− annihilation without the J/ψ resonance) is confirmed to be zero by studying the cross section lineshape of μ+μ− production. The relative phase between J/ψ strong and electromagnetic decays is then measured to be (84.9±3.6)∘ or (−84.7±3.1)∘ for the 2(π+π−)π0 final state by investigating the interference pattern between the J/ψ decay and the continuum process. This is the first measurement of the relative phase between J/ψ strong and electromagnetic decays into a multihadron final state using the lineshape of the production cross section. We also study the production lineshape of the multihadron final state ηπ+π− with η→π+π−π0, which provides additional information about the phase between the J/ψ electromagnetic decay amplitude and the continuum process. Additionally, the branching fraction of J/ψ→2(π+π−)π0 is measured to be (4.73±0.44)% or (4.85±0.45)%, and the branching fraction of J/ψ→ηπ+π− is measured to be (3.78±0.68)×10−4. Both of them are consistent with the world average values. The quoted uncertainties include both statistical and systematic uncertainties, which are mainly caused by the low statistics. Keywords: Phase, Strong amplitude, Electromagnetic amplitude, J/ψ decay, BESIII
نوع الوثيقة:
article
وصف الملف:
electronic resource
اللغة:
English
تدمد:
0370-2693
العلاقة:
http://www.sciencedirect.com/science/article/pii/S0370269319301558Test ; https://doaj.org/toc/0370-2693Test
DOI:
10.1016/j.physletb.2019.03.001
الوصول الحر:
https://doaj.org/article/a505e010d7964a5fa712efc6b49ea8e0Test
رقم الانضمام:
edsdoj.505e010d7964a5fa712efc6b49ea8e0
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