论文标题
手性NJL模型中的衰减$η'\toπρ$
The decay $η' \to πρ$ in the chiral NJL model
论文作者
论文摘要
衰减$η'\至πρ$的分支分数是在手性夸克NJL模型中计算的。由于$ u $ - 和$ d $ quarks之间的质量差异导致$π^{0}-η^{'} $混合，因此存在衰减。采用了两种不同的方法：考虑到过渡$π^{0}-η^{'} $的过渡$π^{'} $明确无依dioganaliation和更精确的方法，该方法在单点和八位列的对角色中，导致物理领域$π^{0} $，$ n^$}获得的结果与当前的实验数据令人满意。
The branching fraction of the decay $η' \to πρ$ is calculated in the chiral quark NJL model. The decay exists due to the mass difference between $u$- and $d$-quarks leading to $π^{0}-η^{'}$ mixing. Two different approaches are applied: the approximate calculation of this process taking into account the transition $π^{0}-η^{'}$ explicitly without dioganalisation and a more precise approach consisting in the diagonalisation of the singlet and octet states leading to the physical fields $π^{0}$, $η$ and $η^{'}$. The obtained results are in satisfactory agreement with current experimental data.
