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arXiv 0705.2621hep-ph
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$P$波介子的衰变常数

Decay constants of $P$-wave mesons

Guo-Li Wang

摘要:

用瞬时Bethe-Salpeter方法计算了$P$波介子的衰变常数.通过对宇称和可能电荷共轭宇称的分析,给出了具有确定宇称和可能电荷共轭宇称的波函数的相对论组态。以这些波函数为输入,求解了不同$P$波态的Salpeter方程,得到了质量谱和波函数的数值。最后计算了重-重态和重-轻态$^3P_0$、$^3P_1$和$^1P_1$的轻子衰变常数。

英文摘要:

Decay constants of $P$-wave mesons are computed in the framework of instantaneous Bethe-Salpeter method (Salpeter method). By analyzing the parity and possible charge conjugation parity, we give the relativistic configurations of wave functions with definite parity and possible charge conjugation parity. With these wave functions as input, the full Salpeter equations for different $P$-wave states are solved, and the mass spectra as well as the numerical values of wave functions are obtained. Finally we compute the leptonic decay constants of heavy-heavy and heavy-light $^3P_0$, $^3P_1$ and $^1P_1$ states.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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