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

Published 14 Nov 2020 in hep-ph | (2011.07214v1)

Abstract: Stimulated by the $P_{cs}(4459)$ reported by the LHCb Collaboration, we perform a single $\Xi_c\bar{D}*$ channel and a coupled $\Xi_c\bar{D}/\Xi_c^\bar{D}/\Xi_c{\prime}\bar{D}/\Xi_c^\bar{D}*$ channel analysis by using a one-boson-exchange model. Our results indicate that the newly $P_{cs}(4459)$ cannot be a pure $\Xi_c\bar{D}*$ molecular state, but a coupled $\Xi_c\bar{D}/\Xi_c^\bar{D}/\Xi_c{\prime}\bar{D}/\Xi_c^\bar{D}*$ bound state with $I(JP)=0(3/2-)$, where the $\Xi_c\bar{D}*$ and $\Xi_c*\bar{D}$ components are dominant. Meanwhile, we find the interactions from the $\Xi_c{\prime}\bar{D}*$ system with $0(1/2-)$, the $\Xi_c{*}\bar{D}$ system with $1(3/2-)$, and the $\Xi_c{}\bar{D}^$ 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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