6533b7d4fe1ef96bd12627a8

RESEARCH PRODUCT

Measurements ofψ(3686)→K−ΛΞ¯++c.c.andψ(3686)→γK−ΛΞ¯++c.c.

X. L. JiY. N. PuE. H. ThorndikeOrhan CakirS. L. OlsenRoy A. BriereL. Q. QinTalib HussainX. S. JiangF. FeldbauerM. H. GuJie ZhaoD. X. LinAlexey ZhemchugovH. M. HuY. B. ZhaoW. ShanX. C. ChenJ. B. JiaoJ. F. SunA. YuncuJ. DongH. Y. ShengS. MarcelloY. ZengC. GengJ. W. ZhangY. Q. WangM. BertaniC. X. YuY. G. XieLi ZhouH. X. YangI. GarziaS. NisarS. HanC. J. TangZ. HaddadiL. YangS. X. DuY. B. ChenXiaofeng ZhuJ. Z. ZhangB. ZhengR. G. PingZ. T. SunZ. A. LiuX. H. MoL. S. WangY. HuY. P. LuM. H. YeL. H. WuY. F. WangY. BanJ. P. LiuP. WeidenkaffL. L. WangM. SavrieY. H. ZhengH. CaiCong-feng QiaoO. AlbayrakS. P. WenN. Yu. MuchnoiX. S. QinX. S. KangHeng-yun YeV. SantoroY. H. ZhangX. R. ZhouW. C. YanM. MaggioraLing ZhaoZ. Y. WangCheng LiX. Y. GaoB. WangD. XiaoX. Y. MaW. X. GongM. H. YeS. QianJialun PingK. GoetzenK. ZhangJ. G. MesschendorpJ. P. DaiQiunan XuJ. M. BianZhenyu ZhangS. J. ZhaoW. LaiX. K. ChuY. D. WangX. Y. ZhangA. ZalloZ. NingBibo KeZhiqiang LiuW. GradlShan WangXiao-rui LyuM. RipkaLei ZhaoZ. Y. HeZ. L. HouYang YangM. LaraH. H. LiuJ. C. LiL. D. LiuTao LuoH. L. MaC. LengY. J. SunD. M. LiL. Y. DongC. H. LiYang QinW. B. YanM. N. AchasovD. Y. WangH. MuramatsuY. P. GuoG. S. VarnerPeilian LiuY. P. LuJ. ZhuangY. X. XiaM. X. LuoI. UmanGiulietto FeliciLingxuan ZhangZ. H. WangQun-yao WangL. P. ZhouL. ZottiS. L. NiuJian WeiYucheng HuangD. J. AmbroseW. G. LiX. Q. LiM. GrecoW. J. ZhengS. PacettiZ. P. ZhangX. M. LiD. V. DedovichM. PelizaeusJ. MinC. F. RedmerXiaocong AiY. H. GuanB. X. YuS. MaD. TothChi ZhangS. SpataroX. P. XuX. LiuZ. P. MaoX. T. HuangC. HuA. A. ZafarS. SchumannD. W. BennettZujian WangX. TangY. J. MaoC. Z. YuanI. B. NikolaevZ. J. XiaoLei LiKai LiuG. RongH. P. HuangH. M. LiuB. KopfJ. C. ChenJ. H. YinK. H. RashidM. AlbrechtJ. S. HuangK. LiXuanhong LouX. K. ZhouJ. Y. LiuFang LiuH. B. LiM. ShaoY. T. GuH. P. ChengA. G. DenigSerkant Ali CetinK. L. HeC. L. LuoY. J. MoKrisztian PetersK. Y. LiuC. X. LiuW. D. LiZ. B. LiQ. OuyangG. F. CaoI. DenysenkoM. UllrichP. R. LiE. FioravantiNasser Kalantar-nayestanakiJ. FangTao LiC. C. ZhangM. Z. WangB. ZhongL. B. GuoY. NefedovJ. Q. ZhangP. L. WangH. S. ChenB. Y. ZhangZ. GaoJimin ZhaoX. L. KangA. SarantsevD. H. WeiUlrich WiednerJ. S. LangeQ. W. ZhaoGuangshun HuangQ. GaoG. F. XuS. JinS. S. FangY. B. LiuY. N. GaoY. ZhangQ. AnJ. Z. FanH. L. DaiIgor BoykoH. W. YuC. Morales MoralesJin LiG. X. SunJ. V. BennettLi YanY. GuoS. J. ChenA. Q. GuoW. M. SongJ. H. LiuG. R. LiaoJ. F. HuI. TapanY. H. YanJ. W. ZhaoM. Y. DongZ. JiaoFu-hu LiuX. FangT. MaD. H. ZhangH. B. LiuO. BondarenkoX. Y. SongKe WangY. X. YangD. Cronin-hennessyY. C. ZhuP. LarinHuan RenH. S. ChenT. WeberA. CalcaterraZ. G. ZhaoJ. H. ZouH. H. ZhangG. A. ChelkovF. LiFeng LiuZhiqing LiuT. JohanssonJ. F. ChangS. S. SunE. BogerM. G. ZhaoO. B. KolcuZ. J. SunH. LoehnerT. HeldK. J. ZhuF. C. MaQ. L. XiuYaquan FangM. AblikimP. L. WangR. PolingR. Q. LuM. QiR. E. MitchellA. HafnerQ. ZhaoZ. G. WangX. L. LuoH. Y. ZhangQ. P. JiY. Z. SunJ. F. QiuZ. H. QinL. FavaW. P. WangP. F. DuanX. N. MaF. BianchiF. NerlingY. T. LiangLiqing XuS. H. ZhangX. Y. ShenG. F. ChenJ. Y. ZhangFenfen AnK. MoriyaM. FritschXiang ZhouY. DingM. KavatsyukB. L. WangB. J. LiuY. K. HengW. KühnT. C. ZhaoB. X. ZhangZ. A. ZhuY. L. HanGang ZhaoAndrzej KupscX. CaiC. P. ShenK. SchoenningB. S. ZouW. L. YuanYunlong ZhangG. CibinettoR. Baldini FerroliX. Q. HaoM. L. ChenQ. J. XuD. BettoniHongsheng ZhaoJ. L. ZhangX. N. LiHaiping PengL. L. JiangJianping ZhengS. ZhuH. LiangQ. P. JiF. A. HarrisM. LvS. B. LiuJ. J. ZhangM. DestefanisMagnus WolkeY. F. LiangD. P. JinQ. A. MalikC. DongS. SosioDayong WangN. QinJoachim PetterssonH. J. LuJ. G. LuF. E. MaasT. HuGuangming HuangP. X. ShenZ. WuL. W. JiangZhiqing ZhangXiangdong RuanQ. LiuL. L. MaL. G. XiaA. AmorosoR. KliemtA. DbeyssiM. KornicerJie YuA. JulinF. De MoriT. J. MinK. J. ZhuX. Y. ZhouJ. Z. BaiX. F. WangQ. M. MaB. KlossX. Y. NiuY. YuanY. S. ZhuX. B. JiM. TiemensP. PatteriXiao-hai LiuG. LiC. D. FuC. Q. FengX. R. ChenZ. Y. DengXingguo Li

subject

PhysicsNuclear and High Energy Physics010308 nuclear & particles physicsBranching fraction0103 physical sciencesMass spectrumAnalytical chemistryHigh Energy Physics::ExperimentStatistical analysisAtomic physics010306 general physicsLambda01 natural sciences

description

Using a sample of 1.06 x 10(8) psi(3686) events produced in e(+)e(-) collisions at root s = 3.686 GeV and collected with the BESIII detector at the BEPCII collider, we present studies of the decays psi(3686) -> K-Lambda(Xi) over bar (+) + c.c. and psi(3686) -> gamma K-Lambda(Xi) over bar (+) + c.c. We observe two hyperons, Xi(1690)(-) and Xi(1820)(-), in the K-Lambda invariant mass distribution in the decay psi(3686) -> K-Lambda(Xi) over bar (+) + c.c. with significances of 4.9 sigma and 6.2 sigma, respectively. The branching fractions of psi(3686) -> K-Lambda(Xi) over bar (+) + c.c., psi(3686) -> K-Sigma(0)(Xi) over bar (+) + c.c, psi(3686) -> gamma chi cJ -> gamma K-Lambda(Xi) over bar (+) + c.c (J = 0, 1, 2), and psi(3686) -> Xi(1690/1820)(-)(Xi) over bar (+) + c.c with sub-sequent decay Xi(1690/1820)(-) -> K-Lambda are measured for the first time.

https://doi.org/10.1103/physrevd.91.092006