6533b86efe1ef96bd12cc68b

RESEARCH PRODUCT

Precision measurements of branching fractions forψ′→π0J/ψandηJ/ψ

K. GoetzenW. KuehnChangjin ZhangM. Y. DongYao WangJ. H. ZouS. S. SunY. T. LiangJürgen BeckerS. MaJ. F. SunR. E. MitchellZ. B. LiD. TothM. H. YeY. ZengZhe SunM. KavatsyukSanfeng WuJ. S. HuangC. X. LiuY. B. ChenXiaofeng ZhuJ. Z. ZhangB. X. ZhangG. F. XuS. JinX. Y. SongW. B. YanM. N. AchasovShou-hua ZhuJie YuH. B. LiZhiqing LiuH. X. YangH.s. XuS. PacettiF. FeldbauerFeng LiuChang LiuK. LiX. Q. LiY. J. MaoFang LiuJ. B. JiaoI. DenysenkoL. Y. DongT. J. MinK. J. ZhuB. D. SchaeferB. Y. ZhangJ. F. ChangQ. A. MalikM. GrecoA. G. DenigN. WuC. L. LuoKrisztian PetersX. L. JiG. R. LiaoJ. MinJ. ZhongKe WangI. TapanS. L. LiH. H. ZhangG. A. ChelkovB. S. ZouB. Q. WangX. CaiC. P. ShenC. P. ShenJ. P. LiuH. B. LiuS. P. YuX. R. LiY. H. YanZhiqiang LiuMiao HeJ. W. ZhaoZujian WangC. C. ZhangY. S. ZhangB. ZhongL. B. GuoLei LiJ. G. MesschendorpW. M. DingQun-yao WangF. F. JingTalib HussainY. H. GuanG. LiY. ZhangM. MaggioraLing ZhaoQ. AnG. S. HuangJifeng HuL. P. ZhouD. Cronin-hennessyY. C. ZhuK. Y. LiuK. L. HeB. SpruckK. X. ZhaoX. H. ZhaoY. M. MaZ. P. MaoY. NefedovZ. Y. HeZ. L. HouJ. B. WeiP. L. WangW. G. LiS. QianJialun PingYang YangI. B. NikolaevUlrich WiednerY. L. HanC. D. FuC. Q. FengWei WuL. L. JiangK. H. RashidX. Y. ZhangQi-wen LüH. P. ChengD. Y. WangQ. OuyangQ. M. MaJ. FangR. PolingV. V. BytevM. ShaoY. T. GuE. BogerY. J. SunS. SpataroX. P. XuC. ZhuY. X. YangY. F. WangQ. J. LiT. MaZ. Y. DengQian LiuG. M. XuFenfen AnYanping HuangC. Z. YuanHongsheng ZhaoQ. J. WangS. S. FangM. R. ShepherdF. A. HarrisY. YuanY. S. ZhuXingguo LiJianping ZhengT. HeldZ. NingM. BertaniXiangdong RuanH. M. LiuLei ZhaoQ. ZhaoZhiyong ZhangA. SarantsevA. SarantsevD. H. WeiJ. S. LangeD. J. AmbroseY. B. LiuY. Z. SunM. H. GuR. B. FerroliH. Y. ShengC. X. YuA. CalcaterraC. S. JiG. X. SunLi YanT. C. ZhaoX. LiuZ. J. XiaoL. G. XiaM. LvZ. XueZ. G. ZhaoZ. JiaoFu-hu LiuD. H. ZhangY. B. ZhaoJ. Z. BaiG. F. CaoX. K. ZhouF. LiF. C. MaY. P. GuoSerkant Ali CetinA. Q. GuoX. Y. MaM. KornicerY. G. XieM. DestefanisJ. Q. ZhangH. LiangQ. P. JiW. X. GongTao LuoGang ZhaoB. ZhengR. G. PingX. TangE. PrencipeP. L. WangH. H. LiuXiao-tong LuX. L. LuoJ. F. QiuQiang ZhaoW. GradlF. CoccettiY. P. ChuX. B. JiZ. J. SunH. LoehnerC. J. TangZ. A. LiuHao-ran YuY. P. LuKai LiuY. M. ZhuH. L. MaL. FavaH. J. LuJ. G. LuD. M. LiX. H. MoL. S. WangW. D. LiM. H. YeC. H. LiH. MuramatsuM. QiZ. H. QinJ. C. LiK. J. ZhuM. PelizaeusS. X. DuXuantong ZhangA. ZalloJ. V. BennettC. MotzkoB. X. YuE. H. ThorndikeL. L. WangChuan LiuF. E. MaasFeng XueCui LiJ. ZhuangT. HuJulian SchulzeYang QinY. BanP. WeidenkaffM. X. LuoS. P. WenX. S. QinJ. P. DaiJoong-won ParkX. R. ZhouC. L. MaB. WangH. S. ChenD. V. DedovichShujun ZhaoMichael WernerJ. L. FuCheng LiC. GengS. L. OlsenRoy A. BriereShan WangH. L. DaiIgor BoykoGuangming HuangS. B. LiuZhenli XuX. S. JiangAlexey ZhemchugovH. M. HuY. H. ZhengCong-feng QiaoO. AlbayrakZ. WuJ. W. ZhangQ. L. XiuMeng WangN. Yu. MuchnoiX. T. LiaoHeng-yun YeY. H. ZhangG. S. VarnerO. CakirHang LiuQ. G. WenZ. Y. WangQ. J. XuX. N. LiHaiping PengZ. ZhongM. G. ZhaoZ. G. WangY. F. LiangQ. P. JiQ. P. JiH. Y. ZhangD. P. JinS. H. ZhangX. Y. ShenY. DingG. F. ChenB. J. LiuJ. Y. ZhangG. R. LuXian ChenDayong WangZ. A. ZhuP. L. LiuD. H. SunY. K. HengL. H. WuX. L. WangJ. M. BianZhenyu ZhangW. LaiY.n. GaoJ. C. ChenNasser Kalantar-nayestanakiM. L. ChenC. Morales MoralesC. NicholsonY. Q. WangX. T. HuangM. AblikimA. A. ZafarG. RongM. UllrichS. J. ChenO. Bondarenko

subject

Nuclear physicsPhysicsNuclear and High Energy PhysicsBranching fractionElectron–positron annihilationPiHigh Energy Physics::ExperimentNuclear ExperimentBranching (polymer chemistry)

description

We present a precision study of the psi' -> pi(0)J/Psi and eta J/Psi decay modes. The measurements are obtained using 106 x 10(6) psi' events accumulated with the BESIII detector at the BEPCII e(+)e(-) collider operating at a center-of-mass energy corresponding to the psi' mass. We obtain B(psi' -> pi(0)J/Psi) = (1.26 +/- 0.02(stat) +/- 0.03(syst)) x 10(-3) and B(psi' -> eta J/Psi) = (33.75 +/- 0.17(stat) +/- 0.86(syst)) x 10(-3). The branching fraction ratio R = B(psi'->pi(0)J/psi)/B(psi'->eta J/psi) is determined to be (3.74 +/- 0.06(stat) +/- 0.04(syst)) x 10(-2). The precision of these measurements of B(Psi' -> pi(0)J/Psi) and R represent a significant improvement over previously published values.

https://doi.org/10.1103/physrevd.86.092008