6533b86cfe1ef96bd12c8d50
RESEARCH PRODUCT
Observation of ψ(3686)→e+e−χcJ and χcJ→e+e−J/ψ
M. KuemmelMatthew Glenn KurthM. M. MaX. F. CuiC. X. LiuY. X. ZhaoY. H. XieG. S. HuangE. M. GersabeckW. J. ZhuI. UmanFang LiuU. WiednerI. DenysenkoShuai LiuCheng LiM. G. ZhaoX. X. MaR. P. GuoJ. ZhuGuangyi ZhangM. MaggioraLing ZhaoS. AhmedY. X. YangBibo KeW. B. YanH. B. LiuF. LiF. C. MaX. L. LuoX. D. ShiDan WangZ. X. MengA. A. ZafarChristoph HeroldF. De MoriR. KappertG. X. SunLi YanZ. JiaoLei ZhaoZ. L. HouS. PacettiB. KopfW. Y. HanX. D. ZhangShan WangXiao-rui LyuK. H. RashidL. J. WuX. WuW. G. LiA. G. DenigG. Y. TangX. H. XieP. T. GeZ. J. XiaoX. Y. ZhouH. Y. ZhangG. F. XuR. E. De BoerM. Q. JingY. H. ZhengCong-feng QiaoY. H. TanKe LiK. BegzsurenW. P. WangF. BianchiS. L. YangJie ZhaoK. L. HeAlexey ZhemchugovH. M. HuZiyi WangG. F. ChenJ. Y. ZhangJ. Q. LiWen-zhao LiuJ. LibbyY. T. LiangM. R. AnS. J. ChenS. SpataroA. CalcaterraZ. G. ZhaoY. B. ZhaoM. AlbrechtS. JinQ. ZhaoM. Y. DongKe WangLei LiA. LavaniaZ. NingS. Y. XiaoJ. H. ZouY. Z. SunH. M. LiuXujin YuanF. H. LiuS. Y. LiY. K. HengYaquan FangM. GrecoS. S. SunM. Z. WangJ. F. HuJimin ZhaoW. ShanW. Y. SunL. Z. LiaoJ. DongI. B. NikolaevS. B. LiuG. R. LiaoC. Z. YuanT. T. HanX. SunN. CaoW. D. LiX. F. WangNicolas BergerLi YuanY. Y. WangJ. B. ZhaoShou-hua ZhuR. E. MitchellS. J. ZhaoQ. P. JiI. R. BoykoG. WilkinsonN. Yu. MuchnoiC. H. HeinzX. S. KangZ. A. LiuYu BaiL. ZhangH. H. ZhangJ. BlomsY. NefedovI. K. KeshkG. F. CaoD. Y. LiuJ. H. YinR. PolingJ. W. ZhangR. AlibertiF. H. HeinsiusN. HüskenX D ShiT. LiuL. H. WuAyut LimphiratQ. J. XuA. BortoneXuanhong LouS. NisarJohn Jake LaneViktor ThorénM. ShaoY. T. GuQ. M. MaY. J. MaoGuoqiang YuS. H. ZhangX. Y. ShenC. J. TangY. HuHuanhuan LiuJ. F. QiuNasser Kalantar-nayestanakiM. LellmannS. MaldanerC. X. LinAlexander Leon GilmanM. RumpGang ZhaoW. S. ChengYao ZhangY. H. ZhangK. SchoenningS. L. OlsenG. LiC. F. RedmerM. QiC. J. XuK. H. QiYue PanX. L. JiY. P. LuH. J. LiX. K. ZhouH. X. YangL. KochA. KhoukazJ. F. SunI. GarziaI. BalossinoB. S. ZouC. X. YueH. B. LiV. PrasadC. L. LuoQ. ZhouYi JinG. FeliciY. DingH. J. WangL. FavaZhi YangM. KuessnerR. Baldini FerroliX. L. WangB. J. LiuY. C. XuKrisztian PetersS. MaldeS. MarcelloY. ZengM. Z. WangB. ZhongL. B. GuoY. YuanK. GoetzenX. Q. HaoH. J. YangY. T. TianT. Y. XingK. RavindranZ. Y. WangD. Y. ChenJinfei WuJ. L. LiuZhe SunB. WangF. NerlingLei LiZ. Y. ZhangJ. X. TengH. LiangM. ScodeggioS. JanchivHuihui LiuA. N. ZhuHaiping PengS. NakhoulM. FritschS. JaegerY. BanTao LuoQ. P. JiTao SunX. DongW. KühnY. B. ChenB. X. YuTeresa LenzAndrzej KupscYanping HuangY. C. ZhuM. KavatsyukC. ZhongJ. Z. ZhangC. D. FuC. Q. FengH. C. ShiX. R. ChenY. G. XieH. S. SangJ. J. SongL. SunXu YanQ. LiuP. LarinShulei ZhangH. S. ChenJin LiR. FarinelliG. A. ChelkovXu ShanJ. G. MesschendorpR. S. ShiY. B. LiuH. L. DaiW. ImoehlY. Y. JiM. X. LuoDylan Jaide WhiteX. H. LiuL. Q. QinR. T. MaJianyu ZhangJie FengA. Q. ZhangH. XiaoH. Y. ZhangZ. Y. DengD. V. DedovichH. L. MaKe LiuHai-tian WangJ. D. LuZ. Y. YouZ. A. ZhuQ. A. MalikA. SarantsevD. H. WeiP. R. LiJ. S. LangeD. M. LiJ. P. DaiC. SchnierY. Q. WangZujian WangH. J. LiG. MezzadriS. F. ZhangLei ZhangW. C. YanA. Q. GuoX. L. LuC. W. WangB. X. ZhangL. L. MaZhiqiang LiuLibo ZhangX. H. LiL. GongL. WollenbergC. P. ShenX. T. HuangTong ZhuH. MuramatsuT. LinS. P. WenG. RongH. F. ShenL. M. GuM. N. AchasovJ. F. ShangguanMeng WangM. L. ChenT. Y. QiL. P. ZhouW. M. SongMuhammad IrshadL. G. XiaM. HimmelreichM. PelizaeusZ. P. MaoC. GengXingchao DaiA. AmorosoW. H. WangT. YuT. JohanssonJ. F. ChangJ. FangY. F. WangX. K. ZhouY. L. FanO. B. KolcuH. R. QiT. HoltmannR. KliemtP. P. SuX. CaiL. LavezziA. DbeyssiD. C. ShanA. MangoniF. A. HarrisJ. Y. LiuW. L. ChangYan ZhangCh. RosnerWenbin QianK. Y. LiuW. P. WangX. S. QinX. R. ZhouM. BertaniX. H. MoF. X. LuZ. H. QinM. H. YeY. G. GaoA. GuskovJie YuAngelo RivettiH. LeithoffL. YangY. N. GaoL. L. WangH. CaiY. ZhangL. Q. HuangZongyuan WangFeng YanH. B. JiangJiawei ZhangM. H. YeS. Q. QuF. FeldbauerW. GradlT. J. MinY. X. SongK. J. ZhuL. Y. DongZ. H. LeiF. WeidnerW. Ikegami AnderssonQ. OuyangG. CibinettoZ. L. HuangFeng LiuP. W. LuoX. H. BaiCheng LiS. S. FangC. Y. GuanZhang LiY. B. LiuM. AblikimXiaoyu LiMagnus WolkeY. F. LiangV. RodinP. KieseX. P. XuX. B. JiP. PatteriYuan HouR. A. BriereX. S. JiangYao WangS. PogodinWei XuF. F. SuiP. AdlarsonM. H. GuR. KiuchiY. F. WangZ. J. ChenK. X. SuT. HussainX. Y. MaW. X. GongC. X. YuA. PathakC. H. LiW. H. TianB. ZhengR. G. PingXiangcheng PanZhenxiong YuanPeilian LiuY. X. TanX. P. QinJ. Q. ZhangH. J. LuJ. G. LuF. E. MaasT. HuX. L. LiO. BakinaP. X. ShenZ. WuY. SchelhaasH. R. QiY. P. GuoSerkant Ali CetinJ. B. JiaoH. K. SunS. QianQ. AnJialun PingX. Y. ZhangX. L. WangJ. B. LiuY. J. SunYifan YangY. P. LuJ. L. LiM. RoloF. CossioRuiting MaK. J. ZhuZ. QianJ. TangYunlong ZhangM. H. LiuD. BettoniJ. L. ZhangJianping ZhengS. X. DuK. Y. LiuM. DestefanisG. Y. HouC. DongS. SosioX. Zeng ZengJoachim PetterssonL. D. Liusubject
PhysicsParticle physics010308 nuclear & particles physicsElectron–positron annihilation0103 physical sciencesAnalytical chemistryGeneral Physics and AstronomyHigh Energy Physics::ExperimentAstrophysics::Earth and Planetary Astrophysics010306 general physics01 natural sciencesMathematical physicsdescription
Using 4.479 x 10(8) psi(3686) events collected with the BESIII detector, we search for the decays psi(3686) -> e(+)e(-)chi(cJ) and chi(cJ) -> e(+)e(-)J/psi, where J = 0, 1, 2. The decays psi(3686) -> e(+)e(-)chi(cJ) and chi(cJ) -> e(+)e(-)J/psi are observed for the first time. The measured branching fractions are B(psi(3686) -> e(+)e(-)chi(cJ)) = (11.7 +/- 2.5 +/- 1.0) x 10(-4), (8.6 +/- 0.3 +/- 0.6) x 10(-4), (6.9 +/- 0.5 +/- 0.6) x 10(-4) for J = 0, 1, 2, and B(chi(cJ) -> e(+)e(-)J/psi) = (1.51 +/- 0.30 +/- 0.13)x10(-4), (3.73 +/- 0.09 +/- 0.25)x10(-3), (2.48 +/- 0.08 +/- 0.16)x10(-3) for J = 0, 1, 2, respectively. The ratios of the branching fractions B(psi(3686) -> e(+)e(-)chi(cJ))/B(psi(3686) -> gamma chi(cJ)) and B(chi(cJ) -> e(+)e(-)J/psi)/B(chi(cJ) -> gamma J/psi) are also reported. Also, the alpha values of helicity angular distributions of the e(+)e(-) pair are determined for psi(3686) -> e(+)e(-)chi(c1,2) and chi(c1,2) -> e(+)e(-)J/psi.
year | journal | country | edition | language |
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2018-08-10 | Physical Review Letters |