论文标题
$ω_c$ - 类似于交互的分子状态的系统研究$ξ_c^{（'，*）} \ bar {k}^{（*）} $和$ξ^{（*）} d^{（*）} $
Systematical study of $Ω_c$-like molecular states from interactions $Ξ_c^{(',*)}\bar{K}^{(*)}$ and $Ξ^{(*)}D^{(*)}$
论文作者
论文摘要
在这项工作中，$ω_c$样的分子状态在准贝斯 - 盐盐方程方法中进行系统地研究。相关交互$之一手性和重夸克对称性。所获得的相互作用的潜在核被插入到准贝尔 - 盐方程中，并执行耦合通道计算，以找到可能的分子状态及其耦合到所考虑的通道。结果表明，可以从$ξ^*_ c \ bar {k} $与旋转奇偶校验$ 3/2^ - $相互作用中产生等值态状态，这可能与状态$ω_c（3120）$有关。并且它的等轴伴侣在$ω_c^*π$通道中的主要衰减预测。具有$ 1/2^ - $的等轴和ISOVECTOR状态可以从$ξ'_c\ bar {k} $相互作用中产生，其阈值接近$ω__c（3050）$和$ω_c（3065）$的阈值。它们与$ξ_c\ bar {k} $通道的耦合非常弱，并且Isovector一个人具有强大的耦合到$ω_cπ$。高精度测量有助于确认或搜索此类分子状态。当前结果还建议，对从交互产生的较高质量的状态$ξ^{（*，'）} _ c \ bar {k}^*$和$ξ^*d^*d^{（*）} $也被当前结果建议。
In this work, the $Ω_c$-like molecular states are systematically investigated in a quasipotential Bethe-Salpeter equation approach. The relevant interactions $Ξ_c^{(*,')}\bar{K}^{(*)}$, $Ξ^{(*)}D^{(*)}$, and $Ω^{(*)}_c(π/η/ρ/ω)$ are described by light meson exchanges with the help of the effective Lagrangians with SU(3), chiral, and heavy quark symmetries. The obtained potential kernels of considered interactions are inserted into the quasipotential Bethe-Salpeter equation, and coupled-channel calculations are performed to find possible molecular states and its couplings to the channels considered. The results suggest that an isoscalar state can be produced from the $Ξ^*_c\bar{K}$ interaction with spin parity $3/2^-$, which can be related to state $Ω_c(3120)$. And its isoscalar partner is predicted with a dominant decay in the $Ω_c^*π$ channel. The isoscalar and isovector states with $1/2^-$ can be produced from the $Ξ'_c\bar{K}$ interaction with a threshold close to the mass of the $Ω_c(3050)$ and $Ω_c(3065)$. Their couplings to the $Ξ_c \bar{K}$ channel are very weak, and the isovector one has strong coupling to $Ω_cπ$. High precision measurement is helpful to confirm or search such molecular states. Experimental search of states with higher masses generated from interactions $Ξ^{(*,')}_c \bar{K}^*$ and $Ξ^* D^{(*)}$ are also suggested by the current results.
