Prediction of five-flavored pentaquarks

We analyze the possibility of the existence of a fully exotic pentaquark state $udsc\bar{b}$, which is made from the five different flavors participarting in the strong interactions. We investigate the coupled channel effects of the $B^{(*)} Ξ_c-B^{(*)} Ξ_c^\prime$ system through $t$-channel vector meson exchange to search for such states. A $B Ξ_c$ and a $B Ξ_c^\prime$ bound state are found to have binding energies of about $10-30$~MeV with $B_sΛ_c$ and $B_cΛ$ being the possible decay channels. Similarly, a bound state is formed in the $B^* Ξ_c$ and $B^* Ξ_c^\prime$ channels, respectively. These states could be searched for through the $pp\to B_cΛX$ or $pp\to B_s^{(*)}Λ_c X$ processes by the LHCb collaboration.

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