%0 Journal Article
%T Stable heavy pentaquarks in constituent models
%A Richard, J. M.
%A Valcarce, A.
%A Vijande, J.
%J Physics Letters B
%D 2017
%V 774
%I Elsevier Science Bv
%@ 0370-2693
%G English
%F Richard_etal2017
%O WOS:000414973200093
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3408), last updated on Wed, 20 Dec 2017 19:24:17 +0000
%X 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.
%R 10.1016/j.physletb.2017.10.036
%U http://arxiv.org/abs/1710.08239
%U https://doi.org/10.1016/j.physletb.2017.10.036
%P 710-714