论文标题
在兴奋的$ p $ - 波charmonia的无魅力衰减中逃避HSR
Evasion of HSR in the charmless decays of excited $P$-wave charmonia
论文作者
论文摘要
我们调查了激动的$ P $ -Wave Charmonia $χ_{C1}^\ prime \ to Vv $和$χ_{C2}^\ prime \ to VP $通过中间人魅力的Meson Loops，$ V $和$ p $表示Light vector和Pseudcudoscalar Mesons，相应地，在模型参数中，通过使用有效的拉格朗日方法来评估迷人的介子循环贡献。对于$χ_{c1}^\ prime \至vv $，$ρρ$，$ωΩ$的部分宽度和$ k^*{\ bar k}^*$通道可以达到MEV订单，而$ ϕ $ Channel的部分宽度很小，并且在Kev的顺序中很小。对于$χ_{c2}^\ prime \至v p $，$χ_{c2}}^{\ prime} \ to K^\ ast \ ast \ bar {k}+c.c $的部分宽度变成可分配的，而部分的宽度则是$的witths，而$χ_{发现比$ k^\ ast \ bar {k}+c.c $ channel要小得多。我们的计算可能会通过BESIII实验来检查。
We investigate the charmless decays of excited $P$-wave charmonia $χ_{c1}^\prime \to VV$ and $χ_{c2}^\prime \to VP$ via intermediate charmed meson loops, where $V$ and $P$ denote the light vector and pseudoscalar mesons, respectively. Within the model parameters, the charmed meson loop contributions are evaluated by using the effective Lagrangian approach. For $χ_{c1}^\prime \to VV$, the partial widths of the $ρρ$, $ωω$, and $K^*{\bar K}^*$ channels can reach to the order of MeV, while the partial width of the $ϕϕ$ channel is very small and in the order of keV. For $χ_{c2}^\prime \to V P$, the partial widths of $χ_{c2}^{\prime} \to K^\ast \bar{K}+c.c$ turns out to be sizeable, while the partial widths of $χ_{c2}^{\prime} \to ρ^+π^- +c.c$ is found to be much smaller than the $K^\ast \bar{K}+c.c$ channel. Our calculations may be examined by the future BESIII experiments.
