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We study the masses and lifetimes of doubly charmed pentaquark $P_{cc\barqqq}(q=u,d,s)$ primarily. The operation of masses carried out by the doublyheavy triquark-diquark model, whose results suggests the existence of stablestates $cc\bar s ud$ with the parity $J^P=\frac{1}{2}^-$. The roughlycalculation about lifetimes show the short magnitudes,$(4.65^{+0.71}_{-0.55})\times 10^{-13}s $ for the parity $J^P=\frac{1}{2}^-$and $(0.93^{+0.14}_{-0.11})\times 10^{-12} s $ for $J^P=\frac{3}{2}^-$. Sincethe pentaquark $cc\bar s ud$ is interpreted as the stable bound states againststrong decays, then we will focus on the production and possible decay channelsof the pentaquark in the next step, the study would be fairly valuable supportsfor future experiments. For completeness, we systematically studied theproduction from $\Omega_{ccc}$ and the decay modes in the framework SU(3)flavor symmetry, including the processes of semi-leptonic and two bodynon-leptonic decays. Synthetically, we make a collection of the goldenchannels.

The study of doubly charmed pentaquark $c c \bar qqq$ with the SU(3) symmetry