6533b854fe1ef96bd12afc1e
RESEARCH PRODUCT
Observation ofη′→ωe+e−
M. TiemensH. B. LiuY. J. MoJ. Q. ZhangA. Q. GuoX. Y. ShenA. SarantsevA. SarantsevA. SarantsevG. F. CaoH. S. ChenF. F. AnT. WeberK. PetersM. H. YeY. H. GuanJ. M. BianJianmin DongH. LoehnerYun-zhi ZhangZhenyu ZhangL. L. MaB. X. YuQ. P. JiY. J. SunZ. H. WangZ. HaddadiS. S. SunY. P. GuoZ. JiaoG. S. VarnerD. W. BennettZujian WangT. C. ZhaoC. L. LuoX. Y. JiangLing ZhaoLiqing XuP. WeidenkaffL. D. LiuB. X. ZhangSai-juan ChenV. SantoroZ. P. ZhangP. R. LiJ. L. PingA. AmorosoO. CakirO. CakirL. YangE. E. ErenI. DenysenkoLei ZhaoX. R. ChenYaquan FangShou-hua ZhuFu-hu LiuC. Q. FengC. F. RedmerZ. T. SunYang YangA. DenigD. Y. WangW. J. ZhengM. GrecoG. RongW. ShanZ. NingA. DbeyssiY. Q. WangY. NefedovQiang ZhaoS. NisarC. J. TangY. H. YanI. TapanZ. A. LiuKai LiuJ. C. LiQ. AnB. WangH. H. ZhangD. XiaoS. S. FangC. LengM. AblikimX. H. MoJ. F. HuX. L. JiJ. H. YinK. H. RashidX. T. HuangA. CalcaterraM. MaggioraV. PrasadW. KühnZ. J. SunZ. G. ZhaoU. WiednerJ. H. ZouS. HanY. F. WangE. FioravantiM. RipkaH. Y. ShengS. J. ZhaoH. B. LiX. Y. SongJ. ZhuangL. Y. DongY. T. GuKejun ZhuW. D. LiG. LiA. JulinS. SpataroF. A. HarrisB. Y. ZhangX. L. KangBibo KeQ. W. ZhaoK. SchoenningS. SchumannX. D. RuanC. Morales MoralesM. SavrieH. XiaoA. A. ZafarM. H. GuJ. Z. BaiJ. G. LuW. GradlAndrzej KupscT. HeldW. L. YuanZ. G. WangGuangshun HuangX. R. ZhouZ. Y. DengJ. FangH. Y. ZhangCheng LiF. De MoriHaiwen LiuY. H. ZhengYao WangT. LuoX. Y. GaoX. S. QinI. B. NikolaevI. B. NikolaevZ. A. ZhuF. FeldbauerD. J. AmbroseX. Y. ZhangM. N. AchasovM. N. AchasovY. J. MaoN. Kalantar-nayestanakiG. X. SunX. Y. ZhouL. FavaF. E. MaasY. F. LiangQ. P. JiX. C. ChenY. ZengH. L. DaiChi ZhangL. H. WuI. GarziaY. B. ChenS. B. LiuL. B. GuoD. H. WeiJ. S. LangeW. B. YanXiaocong AiXiao-rui LyuC. D. FuSerkant Ali CetinH. CaiBrent J. LiuP. PatteriL. G. XiaYi-ming HuJ. Y. ZhangY. HuangGiulietto FeliciS. X. DuX. N. MaM. PelizaeusS. P. WenM. AlbrechtJimin ZhaoR. G. PingL. S. WangY. T. LiangJ. P. DaiG. ChenI. UmanQ. J. XuJianhao ZhangK. GoetzenM. X. LuoI. BoykoH. P. PengP. X. ShenM. BertaniL. W. JiangX. LiuM. LaraJ. S. HuangJ. B. LiuY. YuanG. F. XuCui LiY. X. YangD. X. LinZ. J. XiaoH. M. HuP. L. WangS. PacettiH. J. YangB. KlossHuihui LiuB. ZhongZhiqing ZhangX. F. WangM. UllrichY. P. LuZhiqing LiuB. ZhengW. C. YanO. AlbayrakJ. W. ZhaoM. FritschC. C. ZhangY. S. ZhuX. Q. HeJ. P. ZhengM. KavatsyukJin LiQ. OuyangC. X. YuR. KliemtT. JohanssonX. K. ChuWei LiL. L. WangL. Q. QinYu ZhangJ. C. ChenH. X. YangY. GuoJ. P. LiuO. B. KolcuO. B. KolcuL. YanA. HafnerX. S. KangY. H. ZhangX. Y. NiuE. H. ThorndikeY. Z. SunP. L. WangH. J. LuM. DestefanisX. Y. MaJia-ju ZhangZ. WuK. LiXiang ZhouY. BanY. K. HengH. MuramatsuX. CaiM. QiM. G. ZhaoP. F. DuanH. P. ChengTao LiJie YuLili ZhangA. ZalloX. K. ZhouJ. MinY. P. LuX. Q. HaoZ. Y. WangX. TangJ. G. MesschendorpY. N. ZhangQ. M. MaZ. GaoMagnus WolkeZ. H. QinM. KornicerJ. F. QiuFang LiuCh. RosnerD. P. JinF. C. MaA. YuncuA. YuncuDayong WangN. QinP. L. LiuX. L. LuoB. S. ZouLi ZhouT. HuK. WangM. YeF. NerlingQ. GaoG. ZhaoG. CibinettoX. M. LiK. ZhangS. G. WangP. KieseC. P. ShenX. P. XuM. Y. DongZ. L. HouYuehong XieD. H. ZhangY. B. LiuH. L. MaY. B. ZhaoJ. Z. FanA. ZhemchugovA. ZhemchugovLei LiK. L. HeJ. F. ChangX. FangFeng LiuJie ZhaoY. GaoW. X. GongQ. LiuS. QianM. WangS. L. OlsenRoy A. BriereR. PolingW. P. WangF. BianchiG. M. HuangC. Z. YuanB. KopfX. S. JiangP. LarinR. Baldini FerroliT. MaJ. B. JiaoJ. LiuX. B. JiG. R. LiaoD. DedovichZ. P. MaoR. E. MitchellS. H. ZhuX. N. LiM. ShaoX. C. LouX. C. LouG. ChelkovJ. V. BennettC. X. LiuT. HussainM. L. ChenN. Yu. MuchnoiN. Yu. MuchnoiY. C. ZhuY. XiaF. Y. LiH. LiangQ. L. XiuS. L. NiuF. Y. LiX. Q. LiD. M. LiS. JinK. Y. LiuJ. B. WeiC. F. QiaoK. MoriyaZ. B. LiH. S. ChenX. L. LiYunlong ZhangY. DingD. BettoniJ. L. ZhangW. M. SongL. ZottiC. HuJie LiuJ. F. SunS. MarcelloXiaofeng ZhuJ. Z. ZhangK. J. ZhuE. BogerE. BogerC. DongS. SosioJoachim Petterssonsubject
PhysicsNuclear physicsNuclear and High Energy PhysicsMesonBranching fractionElectron–positron annihilationAnalytical chemistryRadiative decayHigh Energy Physics::ExperimentVector meson dominanceNuclear ExperimentOmegadescription
Based on a sample of eta' mesons produced in the radiative decay J/psi -> gamma eta' in 1.31 x 10(9) J/psi events collected with the BESIII detector, the decay eta' -> omega e(+)e(-) is observed for the first time, with a statistical significance of 8 sigma. The branching fraction is measured to be B(eta' -> omega e(+)e(-)) = (1.97 +/- 0.34(stat) +/- 0.17(syst)) x 10(-4), which is in agreement with theoretical predictions. The branching fraction of eta' -> omega gamma is also measured to be (2.55 +/- 0.03(stat) +/- 0.16(syst)) x 10(-2), which is the most precise measurement to date, and the relative branching fraction B(eta' -> omega e(+)e(-))/B(eta' -> omega gamma) is determined to be (7.71 +/- 1.34(stat) +/- 0.54(syst)) x 10(-3).
year | journal | country | edition | language |
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2015-09-14 | Physical Review D |