摘要
考虑到各种相对论效应,唯象地研究了0-+和0++夸克偶素的双光子衰变.相比于通常用的非相对论近似,我们的相对论唯象方法给出了3种分别由介子内夸克相对动量,相对能量,以及它的自旋形式的选取带来的效应.在c c和s s中我们做了具体的分析.
Relativistic effects in two-photon decay of quarkonium are investigated with a relativistic phenomenological approach. Compared with the NR approximation usually used, the relativistic phenomenological approach gives corrections coming from three sources: qq over-bar relative momentum distribution, qq over-bar relative energy distribution and description of quark spinors in the meson. These relativistic effects are studied in detail for cc and ss over-bar systems.
出处
《高能物理与核物理》
EI
CSCD
北大核心
2005年第6期555-560,共6页
High Energy Physics and Nuclear Physics
基金
中国科学院知识创新工程重大项目(KJCX2 SW N02)
国家自然科学基金(10225525,10435080)资助~~
