论文标题
$ d_ {s0}（2590）^{+} $共振的规范解释
Canonical interpretation of the $D_{s0}(2590)^{+}$ resonance
论文作者
论文摘要
$ d_ {s0}（2590）^{+} $共振由LHCB协作观察到的共鸣是$ d_ {s}（2^1S_0）$ state的强大候选者，该$根据其旋转平等和强衰减模式的状态。但是，测得的质量似乎比以前的理论预测相对较低，这对文献中的耦合通道解释感兴趣。在这项工作中，我们考虑了潜在模型中的筛选效果，以描述$ d_ {s0}（2590）^{+} $ resonance。在修改后的相对夸克模型和$^3p_0 $模型中研究了激发魅力的介体的质谱和强烈的衰减。 $ d_ {s0}（2590）^{+} $的计算出的质量和宽度与实验观测值一致，这表明它可以合理地解释为$ d_ {s}（2^{1} s_ {0}）$状态。
The $D_{s0}(2590)^{+}$ resonance observed by LHCb Collaboration is a strong candidate of the $D_{s}(2^1S_0)$ state according to its spin parity and strong decay mode. However, the measured mass seems relatively lower than the previous theoretical predictions, which interests the coupled channel interpretations in the literature. In this work, we adopt an alternate approach, taking into account the screening effects in the potential model, to describe the $D_{s0}(2590)^{+}$ resonance. The mass spectrum and strong decays of the excited charmed-strange mesons are investigated within the modified relativized quark model and $^3P_0$ model. The calculated mass and width of the $D_{s0}(2590)^{+}$ are consistent with the experimental observations, which indicate that it can be reasonably interpreted as the $D_{s}(2^{1}S_{0})$ state.
