Since the extremely narrow positive strangeness pentaquark state ()+(uudd ()) of mass 1.54 GeV and JP = 1/2+ is predicted and with several experimental searches being successfully undertaken, pentaquark becomes the hot topic of investigation. Recent studies of the ()+ in the context of heavy-ion collision suggest that the ()+ yield may bring about information on the early stage of heavy-ion collision due to its weak interaction with other hadrons produced in the course of the collision.
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