Manifestly exotic pentaquarks with a single heavy quark
Abstract
Inspired by the observed X(2900), we study systematically the mass spectra of the ground pentaquark states with the qqqqQ (Q=c,b; q=n,s; n=u,d) configuration in the framework of the Chromomagnetic Interaction model. We present a detailed analysis of their stabilities and decay behaviors. Our results indicate that there may exist narrow states or even stable states. We hope that the present study may inspire experimentalist's interest in searching for such a type of the exotic pentaquark state.
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