English

Pentaquarks with anticharm or beauty revisited

High Energy Physics - Phenomenology 2019-01-29 v1

Abstract

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

Keywords

Cite

@article{arxiv.1901.03578,
  title  = {Pentaquarks with anticharm or beauty revisited},
  author = {J. -M. Richard and A. Valcarce and J. Vijande},
  journal= {arXiv preprint arXiv:1901.03578},
  year   = {2019}
}

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4 pages