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arxiv: 1809.03750 · v2 · submitted 2018-09-11 · ✦ hep-ex

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Observation of D⁰⁽⁺⁾to K⁰_Sπ⁰⁽⁺⁾η^prime and improved measurement of D⁰to K^-π^+η^prime

M.Ablikim , M.N.Achasov , S. Ahmed , M.Albrecht , M.Alekseev , A.Amoroso , F.F.An , Q.An
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Y.Bai O.Bakina R.Baldini Ferroli Y.Ban K.Begzsuren D.W.Bennett J.V.Bennett N.Berger M.Bertani D.Bettoni F.Bianchi E.Boger I.Boyko R.A.Briere H.Cai X.Cai A.Calcaterra G.F.Cao S.A.Cetin J.Chai J.F.Chang W.L.Chang G.Chelkov G.Chen H.S.Chen J.C.Chen M.L.Chen P.L.Chen S.J.Chen X.R.Chen Y.B.Chen W.Cheng X.K.Chu G.Cibinetto F.Cossio H.L.Dai J.P.Dai A.Dbeyssi D.Dedovich Z.Y.Deng A.Denig I.Denysenko M.Destefanis F.DeMori Y.Ding C.Dong J.Dong L.Y.Dong M.Y.Dong Z.L.Dou S.X.Du P.F.Duan J.Fang S.S.Fang Y.Fang R.Farinelli L.Fava F.Feldbauer G.Felici C.Q.Feng M.Fritsch C.D.Fu Q.Gao X.L.Gao Y.Gao Y.G.Gao Z.Gao B. Garillon I.Garzia A.Gilman K.Goetzen L.Gong W.X.Gong W.Gradl M.Greco L.M.Gu M.H.Gu Y.T.Gu A.Q.Guo L.B.Guo R.P.Guo Y.P.Guo A.Guskov Z.Haddadi S.Han X.Q.Hao F.A.Harris K.L.He F.H.Heinsius T.Held Y.K.Heng Z.L.Hou H.M.Hu J.F.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 W.Imoehl M.Irshad Q.Ji Q.P.Ji X.B.Ji X.L.Ji H.L.Jiang X.S.Jiang X.Y.Jiang J.B.Jiao Z.Jiao D.P.Jin S.Jin Y.Jin T.Johansson N.Kalantar-Nayestanaki X.S.Kang M.Kavatsyuk B.C.Ke I.K.Keshk T.Khan A.Khoukaz P. Kiese R.Kiuchi R.Kliemt L.Koch O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner A.Kupsc M.Kurth W.K\"uhn J.S.Lange P. Larin L.Lavezzi S.Leiber H.Leithoff C.Li ChengLi D.M.Li F.Li F.Y.Li G.Li H.B.Li H.J.Li J.C.LI J.W.Li K.J.Li KangLi KeLi L.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 L.Z.Liao J.Libby C.X.Lin D.X.Lin B.Liu B.J.Liu C.X.Liu D.Liu D.Y.Liu F.H.Liu FangLiu FengLiu H.B.Liu H.LLiu H.M.Liu HuanhuanLiu HuihuiLiu J.B.Liu J.Y.Liu K.Y.Liu KeLiu L.D.Liu Q.Liu S.B.Liu X.Liu Y.B.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 P.W.Luo T.Luo X.L.Luo S.Lusso X.R.Lyu F.C.Ma H.L.Ma L.L. Ma M.M.Ma Q.M.Ma X.N.Ma X.Y.Ma Y.M.Ma F.E.Maas M.Maggiora S.Maldaner Q.A.Malik A.Mangoni Y.J.Mao Z.P.Mao S.Marcello Z.X.Meng J.G.Messchendorp G.Mezzadri J.Min T.J.Min R.E.Mitchell X.H.Mo Y.J.Mo C.Morales Morales N.Yu.Muchnoi H.Muramatsu A.Mustafa S.Nakhoul 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 M.Papenbrock P.Patteri M.Pelizaeus J.Pellegrino H.P.Peng Z.Y.Peng K.Peters J.Pettersson J.L.Ping R.G.Ping A.Pitka R.Poling V.Prasad H.R.Qi M.Qi T.Y.Qi S.Qian C.F.Qiao N.Qin X.S.Qin Z.H.Qin J.F.Qiu S.Q.Qu K.H.Rashid C.F.Redmer M.Richter M.Ripka A.Rivetti M.Rolo G.Rong Ch.Rosner A.Sarantsev M.Savri\'e K.Schoenning W.Shan X.Y.Shan M.Shao C.P.Shen P.X.Shen X.Y.Shen H.Y.Sheng X.Shi J.J.Song W.M.Song X.Y.Song S.Sosio C.Sowa S.Spataro F.F. Sui G.X.Sun J.F.Sun L.Sun S.S.Sun X.H.Sun Y.J.Sun Y.KSun Y.Z.Sun Z.J.Sun Z.T.Sun Y.TTan C.J.Tang G.Y.Tang X.Tang M.Tiemens B.Tsednee I.Uman B.Wang B.L.Wang C.W.Wang D.Wang D.Y.Wang H.H.Wang K.Wang L.L.Wang L.S.Wang M.Wang MengWang P.Wang P.L.Wang W.P.Wang X.F.Wang Y.Wang Y.F.Wang Y.Q.Wang Z.Wang Z.G.Wang Z.Y.Wang ZongyuanWang T.Weber D.H.Wei P.Weidenkaff S.P.Wen U.Wiedner M.Wolke L.H.Wu L.J.Wu Z.Wu L.Xia X.Xia Y.Xia D.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 X.P.Xu F.Yan L.Yan W.B.Yan W.C.Yan Y.H.Yan H.J.Yang H.X.Yang L.Yang R.X.Yang S.L.Yang Y.H.Yang Y.X.Yang YifanYang Z.Q.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 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.F.Zhang T.J.Zhang X.Y.Zhang Y.Zhang Y.H.Zhang Y.T.Zhang YangZhang YaoZhang 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 Q.Zhou X.Zhou X.K.Zhou X.R.Zhou X.Y.Zhou XiaoyuZhou Xuzhou A.N.Zhu J.Zhu K.Zhu K.J.Zhu S.Zhu S.H.Zhu X.L.Zhu Y.C.Zhu Y.S.Zhu Z.A.Zhu J.Zhuang B.S.Zou J.H.Zou
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classification ✦ hep-ex
keywords primestatsysttimesbranchingimprovedanalyzingbesiii
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By analyzing $2.93\ \rm fb^{-1}$ of data taken at a center-of-mass energy of 3.773~GeV with the BESIII detector, we measure the branching fractions of the Cabibbo-favored hadronic decays $D^0\to K^-\pi^+\eta^\prime$, $D^0\to K^0_S\pi^0\eta^\prime$ and $D^+\to K^0_S\pi^+\eta^\prime$, which are determined to be $(6.43 \pm 0.15_{\rm stat.} \pm 0.31_{\rm syst.})\times 10^{-3}$, $(2.52 \pm 0.22_{\rm stat.} \pm 0.15_{\rm syst.})\times 10^{-3}$ and $(1.90 \pm 0.17_{\rm stat.} \pm 0.13_{\rm syst.})\times 10^{-3}$, respectively. The precision of the branching fraction of $D^0\to K^-\pi^+\eta^\prime$ is significantly improved, and the processes $D^0\to K^0_S\pi^0\eta^\prime$ and $D^+\to K^0_S\pi^+\eta^\prime$ are observed for the first time.

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