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arXiv · 1901.03578

Pentaquarks with anticharm or beauty revisited

J. -M. Richard·A. Valcarce·J. Vijande
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Abstract

We use a constituent model to analyze the stability of pentaquark $\bar Q qqqq$ configurations with a heavy antiquark $\bar c$ or $\bar b$, and four light quarks $uuds$, $ddsu$ or $ssud$. The interplay between chromoelectric and chromomagnetic effects is not favorable, and, as a consequence, no bound state is found below the lowest dissociation threshold.

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J. -M. Richard, A. Valcarce, J. Vijande. 2019-01-11. Pentaquarks with anticharm or beauty revisited. https://doi.org/10.1016/j.physletb.2019.01.031

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