标题:Search for hadronic transition χcJ→η cπ+π- and observation of χcJ→KK̄πππ
作者:Ablikim M.; Achasov M.N.; Ambrose D.J.; An F.F.; An Q.; An Z.H.; Bai J.Z.; Ban Y.;等 更多
作者机构:[Ablikim, M] Institute of High Energy Physics, Beijing, 100049, China;[ Achasov, M.N] G.I. Budker Institute of Nuclear Physics, SB RAS (BINP), Novosib 更多
来源:Physical Review D - Particles, Fields, Gravitation and Cosmology
出版年:2013
卷:87
期:1
DOI:10.1103/PhysRevD.87.012002
摘要:Hadronic transitions of χcJ→ηcπ +π- (J=0, 1, 2) are searched for using a sample of 1.06×108 ψ(3686) events collected with the BESIII detector at the BEPCII storage ring. The ηc is reconstructed with KS0K ±π and K+K-π0 final states. No signals are observed in any of the three χcJ states in either ηc decay mode. At the 90% confidence level, the upper limits are determined to be B(χc0→ηcπ+π -)<0.07%, B(χc1→ηcπ +π-)<0.32%, and B(χc2→η cπ+π-)<0.54%. The upper limit of B(χc1→ηcπ+π-) is lower than the existing theoretical prediction by almost an order of magnitude. The branching fractions of χcJ→KS0K±π π+π-, K+K -π+π-π0, ωK+K -, and π+π-π0 J=0, 1, 2) are measured for the first time. © 2013 American Physical Society.
收录类别:SCOPUS
Scopus被引频次:41
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84872232056&doi=10.1103%2fPhysRevD.87.012002&partnerID=40&md5=406ea4e5d8fabcd190a1a418d65096ff
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