Charmonium spectroscopy and decay at CLEO-c  

作　　者：Helmut Vogel 

机构地区：[1]Department of Physics,Carnegie Mellon University

出　　处：《Chinese Physics C》2010年第6期621-625,共5页中国物理C（英文版）

基　　金：Supported by the U.S. Department of Energy

摘　　要：We report recent results on charmonium spectroscopy and decay from the CLEO-c experiment at the Cornell electrompositron storage ring accelerator, CESR. Most of the results are based on the analysis of 54 pb-1 of luminosity collected at the ψ（2S） resonance, corresponding to 27 M ψ（2S） decays. We concentrate on radiative decays of ψ（2S） and J/ψ, on two-body mesonic decay of XcJ, on hadronic decay of the he, and on higher multipoles in the two-photon cascade ψ（2S）→γχcJ, XcJ→γJ/ψ.We report recent results on charmonium spectroscopy and decay from the CLEO-c experiment at the Cornell electrompositron storage ring accelerator, CESR. Most of the results are based on the analysis of 54 pb-1 of luminosity collected at the ψ（2S） resonance, corresponding to 27 M ψ（2S） decays. We concentrate on radiative decays of ψ（2S） and J/ψ, on two-body mesonic decay of XcJ, on hadronic decay of the he, and on higher multipoles in the two-photon cascade ψ（2S）→γχcJ, XcJ→γJ/ψ.

关 键 词：CHARMONIUM radiative decay two-body decay photon transitions higher multipoles 

分 类 号：O571.3[理学—粒子物理与原子核物理]