@Article{Richard_etal2017, author="Richard, J. M. and Valcarce, A. and Vijande, J.", title="Stable heavy pentaquarks in constituent models", journal="Physics Letters B", year="2017", publisher="Elsevier Science Bv", volume="774", pages="710--714", abstract="It is shown that standard constituent quark models produce ((c)over-barcqqq) hidden-charm pentaquarks, where c denotes the charmed quark and q a light quark, which lie below the lowest threshold for spontaneous dissociation and thus are stable in the limit where the internal (c)over-barc annihilation is neglected. The binding is a cooperative effect of the chromoelectric and chromomagnetic components of the interaction, and it disappears in the static limit with a pure chromoelectric potential. Their wave function contains color sextet and color octet configurations for the subsystems and can hardly be reduced to a molecular state made of two interacting hadrons. These pentaquark states could be searched for in the experiments having discovered or confirmed the hidden-charm meson and baryon resonances.", optnote="WOS:000414973200093", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3408), last updated on Wed, 20 Dec 2017 19:24:17 +0000", issn="0370-2693", doi="10.1016/j.physletb.2017.10.036", opturl="http://arxiv.org/abs/1710.08239", opturl="https://doi.org/10.1016/j.physletb.2017.10.036", archivePrefix="arXiv", eprint="1710.08239", language="English" }