6533b853fe1ef96bd12ac081

RESEARCH PRODUCT

Evidence for the decays of and *

Bibo KeW. B. YanG. A. ChelkovG. A. ChelkovG. A. ChelkovGuangshun HuangL. YanG. R. LiaoM. QiV. PrasadM. KuessnerS. HanH. J. YangH. J. YangS. PacettiS. L. NiuH. J. LuF. De MoriJ. MinL. H. WuKai LiuJ. F. ChangA. YuncuA. YuncuM. SavrieX. LiuH. R. QiYuxin ZhangKe LiHuanhuan LiuS. QianA. Q. GuoC. W. WangG. RongG. FeliciMeng WangYi JinN. Hü SkenJ. W. LiL. XiaZ. H. QinM. Y. DongS. B. LiuL. ZhangY. NefedovS. X. DuZ. L. DouX. Y. ZhouM. RichterH. J. LiF. E. MaasT. HuJun-yi ZhangY. P. GuoY. J. XiaoXiaolu JiSerkant Ali CetinH. B. LiuZ. P. ZhangW. P. WangY. ZhangM. KuemmelMatthew Glenn KurthW. ShanP. L. WangZongyuan WangJ. H. ZouYunlong ZhangS. NisarS. NisarA. CalcaterraZ. G. ZhaoS. FeganK. BegzsurenF. BianchiO. BakinaL. Z. LiaoJ. Q. ZhangD. Y. LiuD. Y. LiuH. L. LiuF. Y. LiS. S. SunJ. LibbyQ. OuyangP. L. ChenD. W. BennettM. AlbrechtS. S. FangY. BaiD. BettoniX. Q. LiY. F. LongX. F. WangX. S. QinShuangli YangX. N. MaY. B. LiuY. T. LiangH. H. ZhangP. X. ShenM. GrecoXiao CaiXiao-rui LyuYaquan FangA. PitkaY. H. XieJ. PellegrinoZ. H. WangW. G. LiW. D. LiB. T. TsedneeTao LuoCui LiQ. M. MaY. K. SunR. FarinelliXiaoyu ZhouA. MustafaR. E. MitchellL. J. WuQ. AnJialun PingX. K. ZhouFang LiuS. MaldanerQ. L. XiuK. ZhangX. Y. ZhangZhiqing ZhangB. WangJ. H. YinM. MaggioraLing ZhaoW. X. GongW. M. SongJ. ZhuangB. KopfC. F. RedmerJ. D. LuH. L. MaY. G. GaoDan WangD. M. LiS. ZhuZhiqing LiuI. DenysenkoW. C. YanM. KavatsyukY. J. MoJ. B. LiuJ. C. LiXiao-yan LiH. MuramatsuK. Y. LiuC. SowaB. X. YuY. YuanY. S. ZhuYu ZhangT. JohanssonLei ZhaoZ. L. HouY. H. ZhengCong-feng QiaoA. ZhemchugovA. ZhemchugovX. T. HuangQ. P. JiS. SpataroX. P. XuLei LiK. L. HeS. Q. QuZ. B. LiW. Ikegami AnderssonK. PetersK. PetersMagnus WolkeK. SchoenningQ. Y. LiN. Yu. MuchnoiN. Yu. MuchnoiZ. WuY. FuB. S. ZouM. Z. WangY. J. SunYifan YangJ. G. LuY. F. WangY. F. LiangM. PelizaeusM. X. LuoY. P. LuM. G. ZhaoY. H. YangI. TapanP. L. WangD. V. DedovichX. X. MaXu ZhouJ. DongM. ShaoY. T. GuD. P. JinO. B. KolcuO. B. KolcuT. J. MinX. S. KangG. F. CaoP. KieseJ. F. HuJ. F. HuY. H. YanJ. F. SunNiklaus BergerH. S. ChenR. P. GuoJ. ZhuB. X. ZhangX D ShiY. C. ZhuP. L. LiS. L. OlsenR. A. BriereL. LavezziY. J. MaoQ. P. JiZ. X. MengX. A. XiongJ. Y. LiuC. J. TangY. HuIgor BoykoY. P. LuD. Y. LiuJ. B. JiaoLiqing XuX. Y. ShenA. A. ZafarH. X. YangN. QinI. GarziaMuhammad IrshadZhiyong ZhangC. Z. YuanZ. Y. WangX. S. JiangL. KochA. KhoukazM. DestefanisX. Q. HaoQ. LiuS. MarcelloY. ZengZhe SunS. LussoY. DingB. J. LiuH. LiangYi ChenT. HeldS. J. ZhaoX. L. GaoB. GarillonR. Baldini FerroliHuihui LiuL. L. MaL. GongA. AmorosoH. B. LiA. G. DenigC. L. LuoX. XiaQ. ZhouD. XiaoX. Y. JiangM. M. MaC. C. ZhangB. ZhongL. B. GuoK. H. RashidK. H. RashidW. KühnZ. Y. YouZ. A. ZhuMichael PapenbrockF. YanM. BertaniBo ZhangZ. NingXiaofeng ZhuJ. Z. ZhangZ. HaddadiM. L. ChenQ. GaoY. N. GaoK. WangJ. Z. FanJ. L. ZhangJian FangR. KiuchiH. Y. ShengI. B. NikolaevI. B. NikolaevC. X. YuJ. G. MesschendorpO. CakirJ. P. DaiJ. P. DaiA. DbeyssiA. N. ZhuS. J. ChenY. PanT. WeberC. P. ShenZ. J. XiaoL. YangC. DongJ. ChaiJ. J. SongS. SosioL. SunA. SarantsevA. SarantsevQ. J. XuM. FritschB. ZhengR. G. PingQiunan XuHaiping PengY. F. WangT. KhanW. L. ChangD. H. WeiP. R. LiP. R. LiJ. S. LangeM. KornicerJiajun ZhengUlrich WiednerAngelo RivettiJ. C. ChenTao ZhangTao ZhangXuanhong LouR. X. YangG. X. SunJ. V. BennettH. L. DaiS. F. ZhangF. LiS. LeiberS. AhmedZ. JiaoFu-hu LiuD. H. ZhangY. X. YangZ. A. LiuNasser Kalantar-nayestanakiT. HussainH. Y. ZhangF. FeldbauerF. A. HarrisA. JulinR. PolingC. Morales MoralesXu ShanZ. L. HuangFeng LiuP. F. DuanX. Y. MaH. LeithoffY. BanP. WeidenkaffF. H. HeinsiusY. T. TanFenfen AnS. P. WenM. AblikimB. L. WangXiaozhong HuangT. C. ZhaoHaiwen LiuJoachim PetterssonKe LiuW. GradlM. RipkaX. R. ZhouCheng LiQ. A. MalikG. MezzadriQ. ZhaoY. Z. SunG. F. ChenD. Y. WangX. H. SunJ. Y. ZhangX. H. MoL. S. WangYuguang XieXiang ZhouI. K. KeshkAndrzej KupscM. YeL. M. GuM. N. AchasovM. N. AchasovL. P. ZhouC. X. LinM. RumpGang ZhaoX. TangY. M. MaZ. P. MaoF. C. MaY. K. HengZ. J. SunTao LiL. L. WangH. CaiM. RoloZ. GaoCh. RosnerM. H. YeJ. Z. ZhaoF. CossioK. J. ZhuM. H. GuL. Y. DongW. J. ZhengJ. F. QiuX. B. JiM. TiemensL. FavaP. PatteriYang ZhangR. KliemtA. MangoniA. GuskovS. NakhoulS. NakhoulJie YuK. J. ZhuG. CibinettoBingxuan LiuBingxuan LiuW. S. ChengYao ZhangG. LiA. GilmanC. D. FuC. Q. FengZ. Y. DengXingguo LiT. Y. QiY. X. XiaS. H. ZhuJiawei ZhaoG. Y. TangJie ZhaoD. X. LinH. M. HuYongke ZhaoJ. W. ZhangF. NerlingF. NerlingM. AlekseevI. UmanP. LarinShan JinK. GoetzenZiwei WangG. F. XuX. L. LuoX. Y. SongJ. J. XuZ. Q. YangJ. S. HuangC. X. Liu

subject

Hadronic decayPhysicsNuclear and High Energy Physics010308 nuclear & particles physicsBranching fractionHadronAstronomy and AstrophysicsLambda01 natural sciencesOmegaCombinatorics0103 physical sciences010306 general physicsInstrumentation

description

Abstract We study the hadronic decays of to the final states and , using an annihilation data sample of 567 pb-1 taken at a center-of-mass energy of 4.6 GeV with the BESIII detector at the BEPCII collider. We find evidence for the decays and with statistical significance of and , respectively. Normalizing to the reference decays and , we obtain the ratios of the branching fractions and to be and , respectively. The upper limits at the 90% confidence level are set to be and . Using BESIII measurements of the branching fractions of the reference decays, we determine % (<0.68%) and % (<1.9%). Here, the first uncertainties are statistical and the second systematic. The obtained branching fraction of is consistent with the previous measurement, and the branching fraction of is measured for the first time.

https://doi.org/10.1088/1674-1137/43/8/083002