Decay and production properties of strange double charm pentaquark

TL;DR

This paper investigates the decay and production characteristics of the strange double-charm pentaquark $P_{ccs}^{++}$, predicting its decay width and estimating its production rate, indicating it could be detectable in future experiments.

Contribution

It employs three-point QCD sum rules to calculate decay widths and estimates production branching ratios for the $P_{ccs}^{++}$ pentaquark, building on previous molecular configuration predictions.

Findings

Decay width approximately 85 MeV with uncertainty

Production branching ratio around 4.3 x 10^{-6}

Suggests the pentaquark is detectable in future searches

Abstract

In this work we investigate the decay and production properties of the strange double-charm pentaquark $P_{ccs}^{++}$ with strangeness $S=-1$. Building upon our previous work predicting its $J^P=1/2^-$ molecular configuration, we employ three-point QCD sum rules to calculate its strong decay widths and estimate its production branching ratio via $\Xi_{bc}^+$ baryon decays. The total strong decay width to the $\Xi_{cc}\bar{K}$ and $\Omega_{cc}\pi$ final-state channels is determined as $85\pm19$ MeV. Furthermore, using a rescattering mechanism, we analyze the $\Xi_{bc}^+\rightarrow D_s^{\ast-}\Xi_{cc}^{++}\rightarrow D^-P_{ccs}^{++}$ process and estimate the production branching ratio to be $\mathcal{B}r(\Xi_{bc}^+\rightarrow D^-P_{ccs}^{++})=(4.3_{-1.5}^{+2.0})\times10^{-6}$. The relatively narrow width and detectable branching ratio suggest the possibility searching for this pentaquark state in the future.