Manifestation of intermediate meson loop effects in charmonium decays  

作　　者：张远江 李刚 赵强 

机构地区：[1]Institute of High Energy Physics,Chinese Academy of Sciences [2]Department of Physics,Qufu Normal University [3]Theoretical Physics Center for Science Facilities,Chinese Academy of Sciences

出　　处：《Chinese Physics C》2010年第9期1181-1184,共4页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China (10675131,10491306);Chinese Academy of Sciences (KJCX3-SYW-N2);Ministry of Science and Technology of China (2009CB825200)

摘　　要：We report the progress on understanding some of those existing puzzles in charmonium decays.We show that the intermediate meson loops （IML） as a long-distance transition mechanism will provide novel insights into these issues.In particular,we show that the IML mechanism would be essentially important for understanding the ψ（3770） non-DD decays.We also comment that such a mechanism is correlated with the Okubo-Zweig-Iizuka （OZI） rule evasions in charmonium hadronic decays.We report the progress on understanding some of those existing puzzles in charmonium decays.We show that the intermediate meson loops （IML） as a long-distance transition mechanism will provide novel insights into these issues.In particular,we show that the IML mechanism would be essentially important for understanding the ψ（3770） non-DD decays.We also comment that such a mechanism is correlated with the Okubo-Zweig-Iizuka （OZI） rule evasions in charmonium hadronic decays.

关 键 词：charmonium decay intermediate meson loop ψ（3770） non DD decay 

分 类 号：O572.33[理学—粒子物理与原子核物理]