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The hidden-charm and hidden-bottom pentaquarks are investigated as meson-baryon molecules coupled to the five-quark states. As a result of our calculation, we find that, in the charm sector, one needs the five-quark potential in addition to the pion exchange potential in order to produce bound and resonant states, whereas, in the bottom sector, the pion exchange interaction is strong enough to produce states. Thus, from this investigation, it emerges that the hidden-bottom pentaquarks are more likely to form than their hidden-charm counterparts; for this reason, we suggest that the experimentalists should look for pentaquark states in the bottom sector.

Hidden-charm and -bottom pentaquarks as meson-baryon molecules coupled to the five-quark states