6533b838fe1ef96bd12a3a6b
RESEARCH PRODUCT
Evidence for the singly Cabibbo suppressed decayΛc+→pηand search forΛc+→pπ0
R. KliemtYaquan FangShou-hua ZhuJie YuBibo KeY. J. MaoH. X. YangGuo-ming ChenI. GarziaYunlong ZhangJ. F. QiuT. J. MinK. J. ZhuL. FavaH. J. LuJ. G. LuW. B. YanJ. L. ZhangJ. MinH. B. LiuX. P. XuX. B. JiP. PatteriG. LiM. AblikimF. NerlingSai-juan ChenJianping ZhengS. ZhuK. SchoenningQ. Y. LiB. S. ZouY. B. ZhaoC. D. FuC. Q. FengM. RipkaM. H. YeB. KopfS. PacettiXingguo LiW. ShanJ. DongS. X. DuJ. F. SunNiklaus BergerQ. A. MalikG. MezzadriW. C. YanK. Y. LiuJ. P. LiuX. Q. HeJ. P. DaiJ. P. DaiF. E. MaasI. TapanK. L. HeZ. G. ZhaoS. FeganY. H. YanJ. W. ZhaoT. HuS. MarcelloT. HoltmannOrhan CakirP. KieseM. DestefanisL. P. ZhouY. ZengZhe SunS. NisarC. J. TangY. HuY. P. LuY. C. ZhuY. M. MaZ. P. MaoL. Y. DongW. J. ZhengJ. G. MesschendorpO. BakinaL. D. LiuG. FeliciG. S. HuangQiunan XuX. S. JiangXiao-rui LyuS. W. HanJimin ZhaoP. L. LiC. F. RedmerZhiqing LiuJ. FangTao LiX. L. GaoH. XiaoE. BogerE. BogerP. X. ShenZ. WuL. W. JiangGueorgui ChelkovGueorgui ChelkovGueorgui ChelkovXiaofeng ZhuJ. Z. ZhangJ. J. SongM. Y. DongD. XiaoT. HeldMario GrecoC. DongA. DbeyssiCh. RosnerJ. Y. LiuM. M. MaJ. C. ChenQ. LiuTristan WeberKe WangI. B. NikolaevH. H. ZhangZ. J. SunH. LoehnerYao WangA. CalcaterraS. SosioJ. H. YinY. H. XieM. QiY. X. XiaPeilian LiuM. ShaoY. T. GuZhiqing ZhangA. Q. GuoS. B. LiuM. TiemensM. MaggioraLing ZhaoZahra HaddadiD. J. AmbroseG. S. VarnerX. K. ZhouH. B. LiL. L. MaE. FioravantiB. KlossJoachim PetterssonC. L. LuoH. J. LiH. J. YangT. JohanssonY. NefedovL. GongZ. GaoLei ZhaoZ. L. HouJ. H. ZouS. L. NiuC. HuX. CaiQ. GaoY. N. GaoQ. L. XiuC. C. ZhangP. F. DuanF. H. HeinsiusH. R. QiX. TangX. L. KangJ. ChaiA. SarantsevD. H. WeiP. R. LiX. Q. LiB. ZhongL. B. GuoL. G. XiaJ. J. XuY. F. LongP. L. WangJ. S. LangeS. S. SunM. AlbrechtG. X. SunLi YanP. L. WangX. R. ChenY. ZhangGianfranco MorelloG. R. LiaoLei LiG. CibinettoC. LengX. L. LuoZ. JiaoXichao RuanD. H. ZhangO. B. KolcuB. Q. WangX. FangZ. H. QinC. Z. YuanY. P. GuoH. L. DaiL. G. XiaB. L. WangK. J. ZhuF. BianchiX. H. MoL. S. WangM. H. YeK. Y. LiuJia-jia QinM. H. GuX. L. JiW. P. WangW. D. LiManuel LaraJ. Z. FanR. E. MitchellF. FeldbauerZ. L. HuangFeng LiuJie ZhaoJun-yi ZhangZ. B. LiT. MaW. G. LiD. X. LinL. LavezziW. Ikegami AnderssonF. A. HarrisY. H. ZhengCong-feng QiaoO. AlbayrakSerkant Ali CetinAlexey ZhemchugovH. M. HuZ. Y. DengY. F. WangZ. P. ZhangFang LiuT. C. ZhaoL. L. WangN. Yu. MuchnoiM. KornicerH. H. LiuF. H. LiuX. S. KangZ. Y. ZhangD. Y. LiuJ. V. BennettY. H. ZhangJ. C. LiH. Y. ShengS. SpataroX. Y. JiangY. Y. LiuU. WiednerI. DenysenkoQ AnT. HussainJ. W. ZhangS. L. OlsenR. A. BriereX. Y. MaW. X. GongJ. Q. ZhangA. JulinS. QianJialun PingA. AmorosoH. LeithoffJ. ZhuangS. AhmedK. ZhangF. De MoriZ. Y. WangA. DenigYi ChenM. X. LuoC. X. YuX. K. ChuX. Y. ZhangJ. S. HuangH. M. LiuD. W. BennettZ. NingZujian WangY. G. XieY. X. YangX. N. MaE. H. ThorndikeX. Y. ZhouL. YangC. H. LiX. H. SunX. Q. HaoQ. OuyangB. Y. ZhangJ. B. LiuC. X. LiuX. H. LiuR. PolingDan WangJ. Z. BaiS. Q. ZhangY. J. SunZ. L. DouTao LuoS. S. FangY. BanM. L. ChenM. FritschB. ZhengR. G. PingY. P. LuY. B. LiuP. LarinA. HafnerM. KavatsyukQ. ZhaoDmitri DedovichY. Z. SunM. N. AchasovM. N. AchasovX. F. WangX. K. ZhouZ. A. LiuO. DorjkhaidavW. GradlJ. B. JiaoB. X. ZhangD. Y. WangB. X. YuQ. M. MaGang ZhaoV. PrasadX. Y. NiuY. YuanY. S. ZhuM. BertaniYu ZhangZhi ZengR. FarinelliP. WeidenkaffH. L. MaD. M. LiH. CaiH. MuramatsuK. GoetzenM. PelizaeusS. P. WenX. S. QinX. R. ZhouL. ZottiF. Y. LiCheng LiAlperen YüncüJin LiIgor BoykoR. Baldini FerroliKrisztian PetersM. Z. WangX. N. LiHaiping PengG. F. XuS. JinG. F. CaoX. Y. SongY. DingB. J. LiuD. BettoniW. KühnZ. Y. YouZ. A. ZhuXiaozhong HuangAndrzej KupscC. P. ShenL. J. WuJ. M. BianS. J. ZhaoB. J. LiuY. J. MoI. UmanZ. J. XiaoH. S. ChenQ. J. XuQ. P. JiLiqing XuX. Y. ShenXuanhong LouF. F. AnNasser Kalantar-nayestanakiC. Morales MoralesYue PanZ. H. WangJ. F. ChangP. MusiolXiaocong AiC. SchnierY. Q. WangZ. G. WangMagnus WolkeH. Y. ZhangY. F. LiangX. T. HuangD. P. JinG. RongX. A. XiongA. A. ZafarDayong WangN. QinJ. Y. ZhangK. H. RashidY. T. LiangY. K. HengK. J. LiM. G. ZhaoR. P. GuoY. N. ZhangL. H. WuM. SavrieH. LiangQ. P. JiF. LiF. C. Masubject
Physics010308 nuclear & particles physicsBranching fractionElectron–positron annihilationAnalytical chemistryLambda01 natural sciencesLuminosityCharmed baryons0103 physical sciencesPiHigh Energy Physics::Experiment010306 general physicsBar (unit)description
We study the singly Cabibbo suppressed decays Lambda(+)(c) -> p eta and Lambda(+)(c) -> p pi(0) using Lambda(+)(c)(Lambda) over bar (-)(c) pairs produced by e(+)e(-) collisions at a center-of-mass energy of root s = 4.6 GeV. The data sample was collected by the BESIII detector at the BEPCII collider and corresponds to an integrated luminosity of 567 pb(-1). We find the first evidence for the decay Lambda(+)(c) -> p eta with a statistical significance of 4.2 sigma and measure its branching fraction to be B(Lambda(+)(c) -> p eta) = (1.24 +/- 0.28(stat) +/- 0.10(sys)) x 10(-3). No significant Lambda(+)(c) -> p pi(0) signal is observed. We set an upper limit on its branching fraction B(Lambda(+)(c) -> p pi(0)) < 2.7 x 10(-4) at the 90% confidence level.
year | journal | country | edition | language |
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2017-06-30 | Physical Review D |