Observation of e(+)e(-) -> omega chi(c1,2) near root s=4.42 and 4.6 GeV
Observation of e(+)e(-) -> omega chi(c1,2) near root s=4.42 and 4.6 GeV
复制标题
根部附近 e( )e(-) -> omega chi(c1,2) 的观测 s=4.42 和 4.6 GeV
DOI：
10.1103/physrevd.93.011102
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发表时间：
2016
影响因子：
5
通讯作者：
Briere R. A
中科院分区：
文献类型：
--
作者：
Ablikim M.;Achasov M. N.;Ai X. C.;Albayrak O.;Albrecht M.;Ambrose D. J.;Amoroso A.;An F. F.;An Q.;Bai J. Z.;Ferroli R. Baldini;Ban Y.;Bennett D. W.;Bennett J. V.;Bertani M.;Bettoni D.;Bian J. M.;Bianchi F.;Boger E.;Boyko I.;Briere R. A
Based on data samples collected with the BESIII detector operating at the BEPCII storage ring at center-of-mass energies, the processesare observed for the first time. With an integrated luminosity ofnear, a significantsignal is found, and the cross section is measured to be. Withnear, a clearsignal is seen, and the cross section is measured to be, while evidence is found for ansignal. The first errors are statistical, and the second are systematic. Due to low luminosity or low cross section at other energies, no significant signals are observed. In thecross section, an enhancement is seen around. Fitting the cross section with a coherent sum of theBreit-Wigner function and a phase-space term, the branching fractionis obtained to be of the order of.
