论文标题

新的$ p_ {cs}(4459)$是一个奇怪的隐藏式charm $ξ_c\ bar {d}^{*} $分子pentaquarks吗?

Can the newly $P_{cs}(4459)$ be a strange hidden-charm $Ξ_c\bar{D}^{*}$ molecular pentaquarks?

论文作者

Chen, Rui

论文摘要

由$ p_ {cs}(4459)$刺激,由LHCB协作报告,我们执行一个$ξ_c\ bar \ bar {d}^*$ channel和一个耦合$ξ_c\ bar {d}^*/ξ_c^*\ bar {d}/ξ_c^{\ prime} \ bar {d}^*/ξ_c^*\ bar {d}^*$通道分析通过使用一个验证频道分析。我们的结果表明,新的$ p_ {cs}(4459)$不能是纯$ξ_c\ bar {d}^*$分子状态,而是一个耦合美元$ξ_c^*\ bar {d} $组件是主导的。同时,我们从$ 0(1/2^ - )$,$ 1(1/2^ - )$,$ 1(1/2^ - )$,$ 1(1/2^ - )$,$ 1(1/2^ - )$,$ 1(3/2^ - )$,$ 1(3/2^ - )$,以及$ξ_c^$ $ 1 $} $^{d $^$^$ {具有很强的吸引力,在这些阈值附近,可以期待可能会有奇怪的隐藏链分子或共振结构,并带有指定的量子数。

Stimulated by the $P_{cs}(4459)$ reported by the LHCb Collaboration, we perform a single $Ξ_c\bar{D}^*$ channel and a coupled $Ξ_c\bar{D}^*/Ξ_c^*\bar{D}/Ξ_c^{\prime}\bar{D}^*/Ξ_c^*\bar{D}^*$ channel analysis by using a one-boson-exchange model. Our results indicate that the newly $P_{cs}(4459)$ cannot be a pure $Ξ_c\bar{D}^*$ molecular state, but a coupled $Ξ_c\bar{D}^*/Ξ_c^*\bar{D}/Ξ_c^{\prime}\bar{D}^*/Ξ_c^*\bar{D}^*$ bound state with $I(J^P)=0(3/2^-)$, where the $Ξ_c\bar{D}^*$ and $Ξ_c^*\bar{D}$ components are dominant. Meanwhile, we find the interactions from the $Ξ_c^{\prime}\bar{D}^*$ system with $0(1/2^-)$, the $Ξ_c^{*}\bar{D}$ system with $1(3/2^-)$, and the $Ξ_c^{*}\bar{D}^*$ system with $1(1/2^-)$ are strongly attractive, where one can expect possible strange hidden-charm molecular or resonant structures near the these thresholds with the assigned quantum numbers.

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