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Stability of multiquarks in a simple string model

AuthorsVijande, Javier ; Valcarce, A.; Richard, Jean-Marc
KeywordsLattice Gauge theories
Exotic hadrons
Bound states
Quantum Chromodynamics (QCD)
[PACS] Nonrelativistic quark model
[PACS] Hadron mass models and calculations
Issue Date17-Dec-2007
PublisherAmerican Physical Society
CitationPhysical Review D 76(11): 114013 (2007)
AbstractA simple string model inspired by the strong-coupling regime of quantum chromodynamics is used as a potential for studying the spectrum of multiquark systems with two quarks and two antiquarks, with a careful treatment of the four-body problem. It is found that the ground state is stable, lying below the threshold for dissociation into two isolated mesons.
Description5 pages, 2 figures.-- PACS nrs.: 12.39.Jh, 12.40.Yx.-- ISI Article Identifier: 000251987200029.-- ArXiv pre-print available at: http://arxiv.org/abs/0707.3996
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevD.76.114013
Appears in Collections:(IFIC) Artículos
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