Measurements of the γγ*→π0 and γγ*→ηc transition form factors at BABAR

摘要：

We present measurements of the γγ*→π0 transition form factor for the momentum transfer range Q2=4-40 GeV2 and the γγ*→ηc transition form factor for the range Q2=2-50 GeV2.The current status of measurements of the meson-photon transition form factors for the η and η′ mesons is discussed.The results of the measurement of the ηc mass,total and two-photon widths are also presented.

关键词： two-photon interaction pseudoscalar meson transition form factor pi0 eta eta(958) etac

作者: V.P.Druzhinin

作者单位: Budker Institute of Nuclear Physics,Novosibirsk 630090,Russia

会议类型: 国际会议

会议名称: 国际φ电子到ψ电子正负电子碰撞研讨会

会议地点: 北京

会议语种:英文

页码: 816-821

在线出版日期: 2009-10-13（万方平台首次上网日期，不代表论文的发表时间）