Decay and production properties of strange double charm pentaquark

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 $85\pm 19$ MeV. Furthermore, using a rescattering mechanism, we analyze the ${\Xi }_{bc}^{+}\to D_s^{\ast -}{\Xi }_{cc}^{++}\to D^{-}{P}_{ccs}^{++}$ process and estimate the production branching ratio to be $\mathcal{B}r({\Xi }_{bc}^{+}\to D^{-}{P}_{ccs}^{++})=(4.3_{-1.5}^{+2.0})\times 10^{-6}$. The relatively narrow width and detectable branching ratio suggest the possibility searching for this pentaquark state in the future.

Comments: 10 pages, 4 figures; accepted by Physical Reveiw D