J/ψ→pω过程的协变张量分析方法

Covariant Tensor Analysis Method for J/ψ→pω

在相对论协变张量分析的理论框架下 ,给出了衰变道J ψ→p pω对应各种可能的中间共振态N 的衰变振幅 ,通过Monte Carlo模拟 ,得到该衰变道中p( p)角分布、pω( pω)不变质量分布及Dalitz图等 .

In the framework of the relativistic covariant tensor formalism,the effective vertices for decay process J/ψ→pω with various intermediate N * states are studied carefully,and the corresponding amplitudes are derived. By performing Monte Carlo simulation,angular distributions pω(ω) invariant mass spectra and Dalitz plots for various partial waves in the J/ψ→pω process are obtained. It can be found that different partial waves give distinguishable distributions.