6533b821fe1ef96bd127ad12
RESEARCH PRODUCT
Measurement of Singly Cabibbo Suppressed Decays Λc+→pπ+π− and Λc+→pK+K−
L. J. WuY. J. MoL. Q. QinF. FeldbauerY. H. GuanKai LiuY. NefedovX. C. ChenTao LuoM. Y. DongM. TiemensH. B. LiuB. X. YuH. S. ChenT. WeberZhi ZengH. L. DaiIgor BoykoM. H. YeKrisztian PetersF. De MoriF. De MoriJ. H. ZouX. Y. ZhouS. S. SunGuangshun HuangL. YanL. YanG. R. LiaoJ. F. HuJ. F. HuR. E. MitchellQ. P. JiL. D. LiuL. Y. DongBingxuan LiuCui LiLiqing XuX. Y. ShenZ. G. WangH. Y. ZhangG. A. ChelkovG. LiW. J. ZhengG. F. XuS. JinX. F. WangY. X. XiaS. H. ZhuL. XiaG. F. ChenF. NerlingC. D. FuZ. T. SunZ. A. LiuY. GuoQ. M. MaB. KlossC. Q. FengX. R. ChenJ. Y. ZhangZ. Y. DengX. Y. SongV. PrasadX. Y. NiuY. YuanY. S. ZhuY. K. HengYaquan FangJ. M. BianZhenyu ZhangS. J. ZhaoXingguo LiY. BanP. WeidenkaffF. H. HeinsiusJ. C. ChenXuanhong LouNasser Kalantar-nayestanakiI. B. NikolaevJ. H. YinM. ShaoY. T. GuC. Morales MoralesJ. Z. BaiS. P. WenX. S. QinX. R. ZhouCheng LiJin LiP. L. LiBibo KeE. FioravantiW. B. YanK. SchoenningQ. Y. LiB. S. ZouM. N. AchasovChi ZhangNiklaus BergerH. H. LiuJ. C. LiM. G. ZhaoR. P. GuoX. L. KangGiulietto FeliciS. PacettiS. PacettiX. B. JiA. SarantsevD. H. WeiJ. S. LangeQ. W. ZhaoY. N. ZhangJ. ZhuangF. LiF. C. MaA. A. ZafarM. X. LuoKe LiP. PatteriM. MaggioraM. MaggioraLing ZhaoH. LiangYucheng HuangD. V. DedovichY. DingX. K. ZhouFang LiuB. J. LiuLei ZhaoZ. L. HouI. DenysenkoK. H. RashidXiao-rui LyuX. H. MoL. S. WangB. Y. ZhangM. H. YeJ. F. QiuY. T. LiangG. S. VarnerW. KühnH. B. LiA. G. DenigC. L. LuoZ. Y. YouZ. A. ZhuL. L. WangH. CaiC. Z. YuanS. J. ChenC. C. ZhangB. ZhongL. B. GuoX. FangY. H. ZhengCong-feng QiaoJ. J. XuH. MuramatsuO. AlbayrakN. Yu. MuchnoiZ. L. HuangUlrich WiednerFeng LiuC. P. ShenJ. F. SunM. KornicerX. S. KangS. QianZ. H. WangP. KieseY. B. LiJialun PingX. L. JiS. L. OlsenXiangdong RuanT. MaY. H. ZhangJ. S. HuangC. X. LiuM. AblikimQ. LiuK. ZhangX. Y. ZhangS. MarcelloS. MarcelloRoy A. BriereY. ZengP. MusiolC. F. RedmerXiaocong AiC. SchnierX. S. JiangL. L. MaZ. Y. WangZ. G. ZhaoS. FeganA. ZalloA. ZalloX. K. ChuM. LaraX. T. HuangZhiqing LiuG. RongL. GongY. B. ChenL. G. XiaA. AmorosoJie ZhaoD. X. LinK. GoetzenAlexey ZhemchugovH. M. HuJ. B. LiuYanwei WangA. Q. GuoH. H. ZhangXiaofeng ZhuJ. Z. ZhangY. J. SunP. L. WangZ. J. SunH. LoehnerA. DbeyssiD. J. AmbroseJ. ChaiY. G. XieJ. W. ZhangT. JohanssonJ. F. ChangW. M. SongS. X. DuO. CakirPeilian LiuY. F. WangR. KliemtLingxuan ZhangY. P. LuA. JulinI. UmanO. B. KolcuZ. L. DouX. CaiS. SchumannW. P. WangJie YuT. HussainZ. H. QinYao WangF. A. HarrisX. Y. MaW. X. GongX. Q. HaoM. H. GuT. J. MinK. J. ZhuY. J. MaoZ. NingP. LarinH. X. YangI. GarziaM. AlbrechtH. LeithoffH. Y. ShengC. X. YuW. D. LiX. H. SunJ. P. LiuJ. G. MesschendorpX. N. MaB. ZhengR. G. PingS. L. NiuJ. P. DaiF. Y. LiX. Q. LiY. F. LongM. GrecoM. GrecoQiunan XuM. ShiW. G. LiX. LiuI. TapanM. FritschH. R. QiQ. P. JiS. SpataroS. SpataroX. P. XuK. Y. LiuY. Y. LiuY. H. YanZ. J. XiaoJ. W. ZhaoM. KavatsyukSerkant Ali CetinLei LiH. M. LiuZ. B. LiW. Ikegami AnderssonY. C. ZhuG. F. CaoD. Y. LiuJ. B. JiaoB. X. ZhangS. Q. ZhangH. XiaoE. BogerT. HeldS. HanSi ChenC. LengL. H. WuM. SavrieJ. Q. ZhangH. J. LuJ. G. LuL. FavaL. FavaF. E. MaasT. HuO. BakinaP. X. ShenZ. WuL. W. JiangZhiqing ZhangX. Y. JiangM. M. MaP. R. LiY. PanG. X. SunJ. V. BennettZ. JiaoFu-hu LiuD. H. ZhangJ. MinB. KopfK. L. HeM. Z. WangJimin ZhaoM. QiH. J. YangY. B. ZhaoW. ShanJ. DongY. Q. WangS. NisarC. J. TangY. HuY. P. LuS. B. LiuM. BertaniZ. HaddadiB. WangD. XiaoL. YangP. L. WangJun-yi ZhangY. P. GuoL. ZottiL. ZottiZ. P. ZhangD. W. BennettZujian WangC. HuW. GradlX. L. LuoM. RipkaX. TangD. Y. WangA. YuncuW. P. WangF. BianchiF. BianchiS. AhmedY. X. YangK. J. ZhuA. HafnerQ. ZhaoY. Z. SunXiang ZhouGang ZhaoYunlong ZhangD. BettoniJ. L. ZhangR. PolingJianping ZhengS. ZhuR. FarinelliR. FarinelliH. L. MaD. M. LiJ. J. ZhangM. DestefanisM. DestefanisM. PelizaeusT. HoltmannJ. Y. LiuQ. OuyangQ. GaoY. N. GaoY. ZhangQ. AnS. S. FangY. B. LiuJ. Z. FanG. CibinettoR. Baldini FerroliQ. J. XuH. J. LiQ. L. XiuC. DongS. SosioS. SosioX. N. LiHaiping PengJoachim PetterssonJ. H. LiuKe WangP. F. DuanFenfen AnXian GaoB. L. WangT. C. ZhaoXiaozhong HuangAndrzej KupscW. L. YuanM. L. ChenA. CalcaterraA. CalcaterraQ. A. MalikG. MezzadriW. C. YanYu ZhangMagnus WolkeL. P. ZhouY. F. LiangD. P. JinY. M. MaZ. P. MaoH. P. ChengDayong WangN. QinJ. FangTao LiZ. GaoCh. RosnerE. H. Thorndikesubject
PhysicsNuclear physics010308 nuclear & particles physicsBranching fraction0103 physical sciencesPiAnalytical chemistryGeneral Physics and AstronomyHigh Energy Physics::Experiment010306 general physicsLambda01 natural sciencesdescription
Using 567 pb(-1) of data collected with the BESIII detector at a center-of-mass energy of root s = 4.599 GeV, near the Lambda(+)(c)->(Lambda) over bar (-)(c) threshold, we study the singly Cabibbo-suppressed decays Lambda c(+) -> p pi(+) pi(-) and Lambda(+)(c) -> pK(+) K- By normalizing with respect to the Cabibbo-favored decay Lambda(+)(c)-> p pi(+)pi(-) we obtain ratios of branching fractions: [B(Lambda(+)(c) -> p pi(+)pi(-))/B(Lambda(+)(c) -> pK(-)pi(+))] = (6.70 +/- 0.48 +/- 0.25)% [B Lambda(+)(c) -> p phi)/B(Lambda(+)(c) -> pK(-)pi(+))] = (1.81 +/- 0.33 +/- 0.13)%,and [B(Lambda(+)(c) -> pK(+)K(non-phi)(-)/B(Lambda(+)(c) -> pK(-)pi(+))] (9.36 +/- 2.22 +/- 0.71)x10(-3), where the uncertainties are statistical and systematic, respectively. The absolute branching fractions are also presented. Among these measurements, the decay Lambda(+)(c) -> p pi(+)pi(-) is observed for the first time, and the precision of the branching fraction for Lambda(+)(c) -> pK(+)K(non-phi)(-) and Lambda(+)(c) -> p phi is significantly improved.
year | journal | country | edition | language |
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2016-12-02 | Physical Review Letters |