Pentaquarks with anticharm or beauty revisited

We use a constituent model to analyze the stability of pentaquark Q¯qqqq configurations with a heavy antiquark c¯ or 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 th...

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Bibliographic Details
Main Authors: Jean-Marc Richard, Alfredo Valcarce, Javier Vijande
Format: Article
Language:English
Published: Elsevier 2019-03-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269319300474