Study of the near-threshold ωφ mass enhancement in doubly OZI suppressed J/psi to γωφ decays

M.Ablikim , M.N.Achasov , O.Albayrak , D.J.Ambrose , F.F.An , Q.An , J.Z.Bai , Y.Ban

show 343 more authors

J.Becker J.V.Bennett M.Bertani J.M.Bian E.Boger O.Bondarenko I.Boyko R.A.Briere V.Bytev X.Cai O. Cakir A.Calcaterra G.F.Cao S.A.Cetin J.F.Chang G.Chelkov G.Chen H.S.Chen J.C.Chen M.L.Chen S.J.Chen X.Chen Y.B.Chen H.P.Cheng Y.P.Chu D.Cronin-Hennessy H.L.Dai J.P.Dai D.Dedovich Z.Y.Deng A.Denig I.Denysenko M.Destefanis W.M.Ding Y.Ding L.Y.Dong M.Y.Dong S.X.Du J.Fang S.S.Fang L.Fava C.Q.Feng R.B.Ferroli P.Friedel C.D.Fu Y.Gao C.Geng K.Goetzen W.X.Gong W.Gradl M.Greco M.H.Gu Y.T.Gu Y.H.Guan A.Q.Guo L.B.Guo T.Guo Y.P.Guo Y.L.Han F.A.Harris K.L.He M.He Z.Y.He T.Held Y.K.Heng Z.L.Hou C.Hu H.M.Hu J.F.Hu T.Hu G.M.Huang G.S.Huang J.S.Huang L.Huang X.T.Huang Y.Huang Y.P.Huang T.Hussain C.S.Ji Q.Ji Q.P.Ji X.B.Ji X.L.Ji L.L.Jiang X.S.Jiang J.B.Jiao Z.Jiao D.P.Jin S.Jin F.F.Jing N.Kalantar-Nayestanaki M.Kavatsyuk B.Kopf M.Kornicer W.Kuehn W.Lai J.S.Lange M.Leyhe C.H.Li Cheng Li Cui Li D.M.Li F.Li G.Li H.B.Li J.C.LI K.Li Lei Li Q.J.Li S.L.Li W.D.Li W.G.Li X.L.Li X.N.Li X.Q.Li X.R.Li Z.B.Li H.Liang Y.F.Liang Y.T.Liang G.R.Liao X.T.Liao D.Lin B.J.Liu C.L.Liu C.X.Liu F.H.Liu Fang Liu Feng Liu H.Liu H.B.Liu H.H.Liu H.M.Liu H.W.Liu J.P.Liu K.Liu K.Y.Liu Kai Liu P.L.Liu Q.Liu S.B.Liu X.Liu Y.B.Liu Z.A.Liu Zhiqiang Liu Zhiqing Liu H.Loehner G.R.Lu H.J.Lu J.G.Lu Q.W.Lu X.R.Lu Y.P.Lu C.L.Luo M.X.Luo T.Luo X.L.Luo M.Lv C.L.Ma F.C.Ma H.L.Ma Q.M.Ma S.Ma T.Ma X.Y.Ma F.E.Maas M.Maggiora Q.A.Malik Y.J.Mao Z.P.Mao J.G.Messchendorp J.Min T.J.Min R.E.Mitchell X.H.Mo C.Morales Morales N.Yu.Muchnoi H.Muramatsu Y.Nefedov C.Nicholson I.B.Nikolaev Z.Ning S.L.Olsen Q.Ouyang S.PacettiB J.W.Park M.Pelizaeus H.P.Peng K.Peters J.L.Ping R.G.Ping R.Poling E.Prencipe M.Qi S.Qian C.F.Qiao L.Q.Qin X.S.Qin Y.Qin Z.H.Qin J.F.Qiu K.H.Rashid G.Rong X.D.Ruan A.Sarantsev B.D.Schaefer M.Shao C.P.Shen X.Y.Shen H.Y.Sheng M.R.Shepherd X.Y.Song S.Spataro B.Spruck D.H.Sun G.X.Sun J.F.Sun S.S.Sun Y.J.Sun Y.Z.Sun Z.J.Sun Z.T.Sun C.J.Tang X.Tang I.Tapan E.H.Thorndike D.Toth M.Ullrich G.S.Varner B.Q.Wang D.Wang D.Y.Wang K.Wang L.L.Wang L.S.Wang M.Wang P.Wang P.L.Wang Q.J.Wang S.G.Wang X.F. Wang X.L.Wang Y.F.Wang Z.Wang Z.G.Wang Z.Y.Wang D.H.Wei J.B.Wei P.Weidenkaff Q.G.Wen S.P.Wen M.Werner U.Wiedner L.H.Wu N.Wu S.X.Wu W.Wu Z.Wu L.G.Xia Z.J.Xiao Y.G.Xie Q.L.Xiu G.F.Xu G.M.Xu Q.J.Xu Q.N.Xu X.P.Xu Z.R.Xu F.Xue Z.Xue L.Yan W.B.Yan Y.H.Yan H.X.Yang Y.Yang Y.X.Yang H.Ye M.Ye M.H.Ye B.X.Yu C.X.Yu H.W.Yu J.S.Yu S.P.Yu C.Z.Yuan Y.Yuan A.A.Zafar A.Zallo Y.Zeng B.X.Zhang B.Y.Zhang C.Zhang C.C.Zhang D.H.Zhang H.H.Zhang H.Y.Zhang J.Q.Zhang J.W.Zhang J.Y.Zhang J.Z.Zhang R.Zhang S.H.Zhang X.J.Zhang X.Y.Zhang Y.Zhang Y.H.Zhang Z.P.Zhang Z.Y.Zhang Zhenghao Zhang G.Zhao H.S.Zhao J.W.Zhao K.X.Zhao Lei Zhao Ling Zhao M.G.Zhao Q.Zhao Q.Z.Zhao S.J.Zhao T.C.Zhao Y.B.Zhao Z.G.Zhao A.Zhemchugov B.Zheng J.P.Zheng Y.H.Zheng B.Zhong Z.Zhong L.Zhou X.K.Zhou X.R.Zhou C.Zhu K.Zhu K.J.Zhu S.H.Zhu X.L.Zhu Y.C.Zhu Y.M.Zhu Y.S.Zhu Z.A.Zhu J.Zhuang B.S.Zou J.H.Zou

Authors on Pith no claims yet

classification ✦ hep-ex

keywords gammaomegajpsierrormassstatsystbesii

0 comments

read the original abstract

A 2.25$\times10^8$ $\jpsi$ event sample accumulated with the BESIII detector is used to study the doubly OZI suppressed decay modes $\jpsi\to\gamma\of$, $\omega\to\ppp$, $\phi\to\kk$. A strong deviation ($>$ 30$\sigma$) from three-body $\jpsi\to\gamma\omega\phi$ phase space is observed near the $\omega\phi$ mass threshold that is consistent with a previous observation reported by the BESII experiment. A partial wave analysis with a tensor covariant amplitude that assumes that the enhancement is due to the presence of a resonance, the X(1810), is performed, and confirms that the spin-parity of the X(1810) is $0^{++}$. The mass and width of the X(1810) are determined to be $M=1795\pm7$(stat)$^{+13}_{-5}$(syst)$\pm$19(mod) MeV/$c^2$ and $\Gamma=95\pm10$(stat)$^{+21}_{-34}$(syst)$\pm$75(mod) MeV/$c^2$, respectively, and the product branching fraction is measured to be ${\cal B}(\jpsi\to\gamma X(1810))\times{\cal B}(X(1810)\to\of)=(2.00\pm0.08$(stat)$^{+0.45}_{-1.00}$(syst)$\pm$1.30(mod))$\times10^{-4}$. %where the first error is the statistical error and the second the systematical error. These results are consistent within errors with those of the BESII experiment.

This paper has not been read by Pith yet.

Study of the near-threshold ωφ mass enhancement in doubly OZI suppressed J/psi to γωφ decays

discussion (0)