6533b7ddfe1ef96bd1273d3c
RESEARCH PRODUCT
Observation of electromagnetic Dalitz decaysJ/ψ→Pe+e−
L. YangY. F. WangQ. LiuC. S. JiP. L. WangX. D. RuanTao LuoJ. V. BennettH. LiangM. Y. DongX. L. LuoQ. P. JiL. G. XiaX. Y. MaW. GradlH. MoeiniW. X. GongB. X. YuM. RipkaH. B. LiuD. Y. WangJ. H. ZouO. FuksM. MaggioraC. H. LiH. S. ChenS. S. SunLing ZhaoLei ZhaoZ. Y. HeZ. L. HouH. L. DaiIgor BoykoM. QiYang YangW. C. YanZ. A. LiuJ. H. LiuR. E. MitchellY. P. GuoC. Z. YuanZhiqiang LiuMiao HeS. BraunJifeng HuL. P. ZhouZ. P. ZhangY. BanP. WeidenkaffKe WangZujian WangX. H. ZhaoZ. P. MaoH. P. ChengS. P. WenL. L. JiangJ. FangTao LiX. S. QinX. R. ZhouR. PolingJ. L. FuY. H. GuanGuangshun HuangCheng LiFenfen AnKai LiuY. DingT. C. ZhaoA. CalcaterraZ. G. ZhaoJ. MinS. B. LiuY. NefedovB. J. LiuF. A. HarrisB. KopfYaquan FangFang LiuL. HuangG. A. ChelkovD. LiI. DenysenkoG. R. LuShou-hua ZhuZ. NingX. Q. LiM. GrecoK. L. HeH. H. ZhangM. Z. WangZ. A. ZhuZ. J. SunH. LoehnerB. Y. ZhangK. SchoenningB. S. ZouM. H. YeR. Baldini FerroliK. Y. LiuC. P. ShenZ. B. LiJ. C. LiJ. ZhuangW. B. YanY. J. MoM. N. AchasovX. K. ChuY. B. ZhaoW. ShanJ. DongY. Q. WangX. N. LiS. NisarC. J. TangS. L. OlsenRoy A. BriereY. P. LuZ. H. WangB. WangZhiqing LiuD. XiaoX. LiuM. X. LuoYang QinB. SpruckE. H. ThorndikeL. Q. QinHaiping PengJian WeiYucheng HuangS. PacettiD. V. DedovichT. JohanssonJ. F. ChangX. S. JiangG. X. SunLi YanW. P. WangQ. P. JiM. KornicerJ. P. DaiX. C. ChenFeng LiuZ. JiaoFu-hu LiuD. H. ZhangM. AblikimL. Y. DongT. GuoP. L. WangKe LiQun-yao WangLiqing XuS. H. ZhangZhiyong ZhangZ. G. WangSerkant Ali CetinJ. F. SunX. Y. ShenX. CaiY. X. XiaH. Y. ZhangO. CakirH. B. LiX. L. JiS. P. YuA. G. DenigC. L. LuoC. GengM. H. GuC. C. ZhangB. ZhongL. B. GuoG. F. ChenY. ZengA. YuncuZhe SunJ. Y. ZhangH. Y. ShengH. J. LuJ. B. JiaoC. F. RedmerXiaocong AiX. Y. ZhouC. X. YuLei LiJ. G. LuTalib HussainUlrich WiednerK. GoetzenW. G. LiI. TapanW. KuehnB. ZhengW. M. DingY. H. YanY. H. ZhengI. UmanX. F. WangCong-feng QiaoO. AlbayrakR. G. PingX. K. ZhouY. B. ChenXiaofeng ZhuJ. Z. ZhangY. K. HengJ. M. BianQ. M. MaJ. W. ZhaoN. Yu. MuchnoiX. S. KangHeng-yun YeY. H. ZhangB. KlossS. J. ZhaoW. LaiX. Y. NiuY. YuanY. S. ZhuQ. L. XiuS. SchumannF. LiF. C. MaZ. Y. WangX. H. MoL. S. WangM. H. YeX. T. HuangQ. J. XuD. Cronin-hennessyS. QianQ. AnJialun PingX. Y. ZhangJ. C. ChenQ. A. MalikY. C. ZhuXuanhong LouYao WangL. L. WangH. CaiN. WuKrisztian PetersNasser Kalantar-nayestanakiM. LaraA. A. ZafarY. J. SunG. RongH. P. HuangQ. OuyangC. Morales MoralesI. B. NikolaevY. P. LuY. G. XieC. DongG. F. XuS. S. FangJ. F. QiuY. B. LiuK. H. RashidS. JinM. ShaoY. T. GuY. T. LiangL. FavaS. SpataroA. ZalloX. P. XuLi ZhouQ. J. LiP. LarinF. E. MaasM. KavatsyukM. G. ZhaoS. X. DuX. Y. SongE. BogerT. HuS. MaD. TothT. HeldX. L. KangA. SarantsevD. H. WeiP. R. LiJ. S. LangeQ. W. ZhaoJ. S. HuangC. X. LiuShan WangC. B. ZhangD. X. LinAlexey ZhemchugovH. M. HuB. X. ZhangJ. W. ZhangD. J. AmbroseH. M. LiuG. S. VarnerY. L. HanChi ZhangMichael WernerG. F. CaoM. AlbrechtA. Q. GuoJianping ZhengM. UllrichZ. J. XiaoW. D. LiW. M. SongM. LvZ. XueGuangming HuangCui LiM. LeyheZ. H. QinJ. J. ZhangM. DestefanisChuan LiuY. J. MaoH. X. YangC. HuZ. WuX. TangHuihui LiuJ. P. LiuJ. G. MesschendorpL. W. JiangQiunan XuH. W. YuZhiqing ZhangK. J. ZhuXuantong ZhangK. MoriyaS. J. ChenO. BondarenkoJ. Q. ZhangL. H. WuAndrzej KupscW. L. YuanM. L. ChenMagnus WolkeY. F. LiangD. P. JinDayong WangP. L. LiuT. MaJie YuT. J. MinK. J. ZhuG. LiC. D. FuC. Q. FengX. R. ChenZ. Y. DengXingguo LiJ. Z. BaiS. L. ZangY. P. ChuX. B. JiH. L. LuQ. GaoY. N. GaoY. ZhangJ. Z. FanXiao-tong LuH. L. MaD. M. LiH. MuramatsuM. PelizaeusY. X. YangM. R. ShepherdQ. ZhaoY. Z. SunXiang ZhouGang ZhaoM. Bertanisubject
PhysicsNuclear and High Energy PhysicsParticle physicsMeson010308 nuclear & particles physicsElectron–positron annihilationAnalytical chemistry01 natural sciencesOmega0103 physical sciencesHigh Energy Physics::ExperimentAstrophysics::Earth and Planetary AstrophysicsNuclear Experiment010306 general physicsdescription
Based on a sample of (225.3 +/- 2.8) x 10(6) J/psi events collected with the BESIII detector, the electromagnetic Dalitz decays of J/psi -> Pe(+)e(-)(P = eta'/eta/pi(0)) are studied. By reconstructing the pseudoscalar mesons in various decay modes, the decays J/psi -> eta'e(+)e(-), J/psi -> eta e(+)e(-), and J/psi -> pi(0)e(+)e(-) are observed for the first time. The branching fractions are determined to be B(J/psi -> eta'e(+)e(-)) = (5.81 +/- 0.16 +/- 0.31) x 10(-5), B(J/psi -> eta e(+)e(-)) = (1.16 +/- 0.07 +/- 0.06) x 10(-5), and B(J/psi -> pi(0)e(+)e(-)) = (7.56 +/- 1.32 +/- 0.50) x 10(-7), where the first errors are statistical and the second ones systematic.
year | journal | country | edition | language |
---|---|---|---|---|
2014-05-19 | Physical Review D |