Study of two-photon decays of pseudoscalar mesons via J/Psi radiative decays
收录类别SCIE
2018-04-26
发表期刊PHYSICAL REVIEW D
卷号97
出版者AMER PHYSICAL SOC
出版地COLLEGE PK
摘要Using a sample of 4.48 x 10(8) Psi(3686) events collected with the BESIII detector at the BEPCII collider, we study the two-photon decays of the pseudoscalar mesons pi(0,) eta , eta' , eta(1405), eta(1475), eta(1760), and X(1835) in J/Psi radiative decays using Psi(3686) -> pi(+) pi(-) J/Psi events. The pi(0), eta, and eta' mesons are clearly observed in the two-photon mass spectra, and the branching fractions are determined to be B(J/Psi -> gamma pi(0) -> 3 gamma) = (3.57 +/- 0.12 +/- 0.16) x 10(-5), B(J/Psi -> gamma eta -> 3 gamma) = (4.42 +/- 0.04 +/- 0.18) x 10(-4), and B(J/Psi -> gamma eta' -> 2 gamma) = (1.26 +/- 0.02 +/- 0.05) x 10(-4), where the first error is statistical and the second is systematic. No clear signal for eta(1405), eta(1475), eta(1760) or X(1835) is observed in the two- photon mass spectra, and upper limits at the 90% confidence level on the product branching fractions are obtained.
作者部门
[Ablikim, M.;
An, F. F.;
Bai, J. Z.;
Cai, X.;
Cao, G. F.;
Chang, J. F.;
Chen, G.;
Chen, H. S.;
Chen, J. C.;
Chen, M. L....更多
学科领域Astronomy & Astrophysics ; Physics
所属项目编号National Key Basic Research Program of China [2015CB856700] ; National Natural Science Foundation of China (NSFC) [11565006, 11235011, 1335008, 11425524, 11625523, 11635010] ; 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 ; CAS [U1332201, U1232107, U1532257, U1532258, KJCX2-YW-N29, KJCX2-YW-N45, QYZDJ-SSW-SLH003] ; 100 Talents Program of CAS ; National 1000 Talents Program of China ; INPAC ; Shanghai Key Laboratory for Particle Physics and Cosmology ; German Research Foundation DFG under Collaborative Research Center [CRC 1044, FOR 2359] ; Istituto Nazionale di Fisica Nucleare, Italy ; Koninklijke Nederlandse Akademie van Wetenschappen (KNAW) [530-4CDP03] ; Ministry of Development of Turkey [DPT2006K-120470] ; National Science and Technology fund ; Swedish Research Council ; U.S. Department of Energy [DE-FG02-05ER41374, DE-SC-0010118, DE-SC-0010504, DE-SC-0012069] ; University of Groningen (RuG) ; Helmholtzzentrum fuer Schwerionenforschung GmbH (GSI), Darmstadt ; WCU Program of National Research Foundation of Korea [R32-2008-000-10155-0]
资助项目国家自然科学基金项目 ; 国家重点基础研究发展计划以及国家重大科学研究计划(973计划) ; 美国国家科学基金项目 ; 美国能源部项目 ; 德国科学基金会项目 ; 韩国国家研究基金会项目
项目资助者NSFC ; MOST ; US NSF ; US DOE ; DFG ; Korean NRF
DOI10.1103/PhysRevD.97.072014
ISSN2470-0010
文章类型Article
语种英语
WOS记录号WOS:000430909600001
第一机构
Citation statistics
文献类型期刊论文
条目标识符http://ir.lzu.edu.cn/handle/262010/197241
Collection物理科学与技术学院
通讯作者Ablikim, M (reprint author), Inst High Energy Phys, Beijing 100049, Peoples R China.
Recommended Citation:
GB/T 7714
Ablikim, M,Achasov, MN,Ahmed, S,et al. Study of two-photon decays of pseudoscalar mesons via J/Psi radiative decays[J]. PHYSICAL REVIEW D,2018,97.
APA Ablikim, M.,Achasov, MN.,Ahmed, S.,Albrecht, M.,Amoroso, A.,...&Ablikim, M .(2018).Study of two-photon decays of pseudoscalar mesons via J/Psi radiative decays.PHYSICAL REVIEW D,97.
MLA Ablikim, M,et al."Study of two-photon decays of pseudoscalar mesons via J/Psi radiative decays".PHYSICAL REVIEW D 97(2018).
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