标题:Observation of pseudoscalar and tensor resonances in J/psi -> gamma phi phi
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.; Fe 更多
作者机构:[Ablikim, M.; Ai, X. C.; An, F. F.; Bai, J. Z.; Cai, X.; Cao, G. F.; Chang, J. F.; Chen, G.; Chen, H. S.; Chen, J. C.; Chen, M. L.; Chen, X.; Chen, Y. 更多
通讯作者:Ablikim, M
通讯作者地址:[Ablikim, M]Inst High Energy Phys, Beijing 100049, Peoples R China.
来源:PHYSICAL REVIEW D
出版年:2016
卷:93
期:11
DOI:10.1103/PhysRevD.93.112011
摘要:Based on a sample of (1310.6 +/- 10.5) x 10(6) J/psi events collected with the BESIII detector operating at the BEPCII storage ring, a partial wave analysis of the decay J/psi -> gamma phi phi is performed in order to study the intermediate states. Results of the partial wave analysis show that the structures are predominantly 0(-+) states. The existence of the eta(2225) is confirmed, and its resonance parameters are measured. Two additional pseudoscalar states, the eta(2100) with a mass of 2050(-24-26)(+30+75) MeV/c(2) and a width of 250(-30-164)(+36+181) MeV/c(2) and the X(2500) with a mass of 2470(-19-23)(+15+101) MeV/c(2) and a width of 230(-35-33)(+64+56) MeV/c(2), are observed. In addition to these three pseudoscalar states, the scalar state f(0)(2100), and three tensor states, the f(2)(2010), f(2)(2300) and f(2)(2340), are observed in the process J/psi -> gamma phi phi The product branching fractions B(J/psi -> gamma X) x B(X -> phi phi) are reported.
收录类别:SCIE
WOS核心被引频次:10
资源类型:期刊论文
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