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arxiv: 1711.08293 · v1 · submitted 2017-11-22 · ✦ hep-ex

Recognition: unknown

Measurement of the absolute branching fraction of D_{s0}^{*pm}(2317)to π⁰ D_{s}^{pm}

M.Ablikim , M.N.Achasov , S. Ahmed , M.Albrecht , A.Amoroso , F.F.An , Q.An , J.Z.Bai
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O.Bakina R.Baldini Ferroli Y.Ban D.W.Bennett J.V.Bennett N.Berger M.Bertani D.Bet toni J.M.Bian F.Bianchi E.Boger I.Boyko R.A.Briere H.Cai X.Cai O. Cakir A.Calcaterra G.F.Cao S.A.Cetin J.Chai J.F.Chang G.Chelkov G.Chen H.S.Chen J.C.C hen M.L.Chen S.J.Chen X.R.Chen Y.B.Chen X.K.Chu G.Cibinetto H.L.Dai J.P.Dai A.Dbeyssi D.Dedovich Z.Y.Deng A.Denig I.Denysenko M.Destefanis F.DeMori Y.Di ng C.Dong J.Dong L.Y.Dong M.Y.Dong O.Dorjkhaidav Z.L.Dou S.X.Du P.F.Duan J.Fang S.S.Fang X.Fang Y.Fang R.Farinelli L.Fava S.Fegan F.Feldbauer G.Felici C.Q.Feng E.Fioravanti M. Fritsch C.D.Fu Q.Gao X.L.Gao Y.Gao Y.G.Gao Z.Gao I.Garzia K.Goetzen L.Gong W.X.Gong W.Gradl M.Greco M.H.Gu S.Gu Y.T.Gu A.Q.G uo L.B.Guo R.P.Guo Y.P.Guo Z.Haddadi S.Han X.Q.Hao F.A.Harris K.L.He X.Q.He F.H.Heinsius T.Held Y.K.Heng T.Holtmann Z.L.Hou C.Hu H.M.Hu T.Hu Y.Hu G.S .Huang J.S.Huang X.T.Huang X.Z.Huang Z.L.Huang T.Hussain W.Ikegami Andersson Q.Ji Q.P.Ji X.B.Ji X.L.Ji X.S.Jiang X.Y.Jiang J.B.Jiao Z.Jiao D.P.Jin S.Jin T.Johansson A.Julin N.Kalantar-Nayestanaki X.L.Kang X.S.Kang M.Kavatsyuk B.C.Ke T.Khan P. Kiese R.Kliemt L.Koch O.B.Kolcu B.Kopf M.Kornicer M.Kuemmel M .Kuhlmann A.Kupsc W.K\"uhn J.S.Lange M.Lara P. Larin L.Lavezzi H.Leithoff C.Leng C.Li Cheng Li D.M.Li F.Li F.Y.Li G.Li H.B.Li H.J.Li J.C.LI JinLi K.Li LeiLi P.L.Li P.R.Li Q.Y.Li T. Li W.D.Li W.G.Li X.L.Li X.N.Li X.Q.Li Z.B.Li H.Liang Y.F.Liang Y.T.Liang G.R.Liao D.X.Lin B.Liu B.J.Liu C.X.Liu D.Liu F.H.Liu FangLiu FengLiu H.B.Liu H.H.Liu H.M.Liu J.B.Liu J.P.Liu J.Y.Liu K.Liu K.Y.Liu KeLiu L.D.Liu P.L.Liu Q.Liu S.B.Liu X.Liu Y.B.Li u Y.Y.Liu Z.A.Liu ZhiqingLiu Y. F.Long X.C.Lou H.J.Lu J.G.Lu Y.LU Y.P.Lu C.L.Luo M.X.Luo T.Luo X.L.Luo X.R.Lyu F.C.Ma H.L.Ma L.L. Ma M.M.Ma Q.M.Ma T .Ma X.N.Ma X.Y.Ma Y.M.Ma F.E.Maas M.Maggiora Q.A.Malik Y.J.Mao Z.P.Mao S.Marcello J.G.Messchendorp G.Mezzadri J.Min T.J.Min R.E.Mitchell X.H.Mo Y.J.Mo C.Morales Morales G.Morello N.Yu.Muchnoi H.Muramatsu P.Musiol A.Mustafa Y.Nefedov F.Nerling I.B.Nikolaev Z.Ning S.Nisar S.L.Niu X.Y.Niu S.L.Olsen Q.Ouyang S.Pacetti Y.Pan P.Patteri M.Pelizaeus J.Pellegrino H.P.Peng K.Peters J.Pettersson J.L.Ping R.G.Ping R.Poling V.Prasad H.R.Qi M.Qi S.Qian C.F.Qiao J.J. Qin N.Qin X.S.Qin Z.H.Qin J.F.Qiu K.H.Rashid C.F.Redmer M.Richter M.Ripka G.Rong Ch.Rosner X.D.Ruan A.Sarantsev M.Savri\'e C.Schnier K.Schoenning W.Shan M.Shao C.P.Shen P.X.Shen X.Y.Shen H.Y.Sheng J.J.Song X.Y.Song S.Sosio C.Sowa S.Spataro G.X.Sun J.F.Sun S.S.Sun X.H.Sun Y.J.Sun Y.KSun Y.Z.Sun Z.J.Sun Z.T.Sun C.J.Tang G.Y.Tang X.Tang I.Tapan M.Tiemens B.T.Tsednee I.Uman G.S.Varner B.Wang B.L.Wang D.Wang D.Y.Wang DanWang K.Wang L.L.Wang L.S.Wang M.W ang P.Wang P.L.Wang W.P.Wang X.F. Wang Y.D.Wang Y.F.Wang Y.Q.Wang Z.Wang Z.G.Wang Z.H.Wang Z.Y.Wang T.Weber D.H.Wei P.Weidenkaff S.P.Wen U.Wie dner M.Wolke L.H.Wu L.J.Wu Z.Wu L.Xia Y.Xia D.Xiao H.Xiao Y.J.Xiao Z.J.Xiao Y.G.Xie Y.H.Xie X.A.Xiong Q.L.Xiu G.F.Xu J.J.Xu L.Xu Q.J.Xu Q.N.Xu X.P.X u L.Yan W.B.Yan W.C.Yan Y.H.Yan H.J.Yang H.X.Yang L.Yang Y.H.Yang Y.X.Yang M.Ye M.H.Ye J.H.Yin Z.Y.You B.X.Yu C.X.Yu J.S.Yu C.Z.Yuan Y.Yuan A.Yuncu A.A.Zafar Y.Zeng Z.Zeng B.X.Zhang B.Y.Zhang C.C.Zhang D.H.Zhang H.H.Zhang H.Y.Zhang J.Zhang J.L.Zhang J.Q.Zhang J.W.Zhang J.Y.Zhang J.Z.Zhang K.Zhang L. Zhang S.Q.Zhang X.Y.Zhang Y.Zhang Y.H.Zhang Y.T.Zhang YuZhang Z.H.Zhang Z.P.Zhang Z.Y.Zhang G.Zhao J.W.Zhao J.Y.Zhao J.Z.Zhao LeiZhao LingZhao M.G.Zhao Q.Zhao S.J.Zhao T.C.Zhao Y.B.Zhao Z.G.Zhao A.Zhemchugov B.Zheng J.P.Zheng W.J.Zheng Y.H.Zheng B.Zhong L.Zhou X.Zhou X.K.Zhou X.R.Zhou X.Y.Zhou Y.X.Zhou K.Zhu K.J.Zhu S.Zhu S.H.Zhu X.L.Zhu Y.C.Zhu Y.S.Zhu Z.A.Zhu J.Zhuang L.Zotti B.S.Zou J.H.Zou
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classification ✦ hep-ex
keywords absolutebranchingfirstfractionmeasuredstatisticaltimebepcii
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The process $e^+ e^- \to D_{s}^{*+} D_{s0}^{*-}(2317)+c.c.$ is observed for the first time with the data sample of 567~pb$^{-1}$ collected with the BESIII detector operating at the BEPCII collider at a center-of-mass energy $\sqrt{s} = 4.6$~GeV. The statistical significance of the $D_{s0}^{*-}(2317)$ signal is $5.8\sigma$ and the mass is measured to be ($2318.3\pm 1.2\pm 1.2$)~MeV/$c^{2}$. The absolute branching fraction $\mathcal{B}(D_{s0}^{*-}(2317)\to \pi^0 D_{s}^{-})$ is measured as $1.00^{+0.00}_{-0.14}\pm 0.14$ for the first time. The uncertainties are statistical and systematic, respectively.

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