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Dynamical study of QQ-(u)over-bar (d)over-bar mesons

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Dynamical study of QQ-(u)over-bar (d)over-bar mesons

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dc.contributor.author Vijande Asenjo, Javier
dc.contributor.author Valcarce Mejía, Alfredo
dc.contributor.author Tsushima, Kazuo
dc.date.accessioned 2014-10-08T10:38:26Z
dc.date.available 2014-10-08T10:38:26Z
dc.date.issued 2006
dc.identifier.citation Vijande Asenjo, Javier Valcarce Mejía, Alfredo Tsushima, Kazuo 2006 Dynamical study of QQ-(u)over-bar (d)over-bar mesons Physical Review D 74 5 054018-1 054018-4
dc.identifier.uri http://hdl.handle.net/10550/39099
dc.description.abstract It has been recently conjectured by Selem and Wilczek [1] the existence of a ss-[ud] meson due to strong correlations between the two light antiquarks. We make a detailed study of this system within a dynamical quark model which has proven to be successful in reproducing the most important features of low-energy hadron phenomenology. Our results, obtained within a parameter-free calculation, show that the antidiquark component of the ssu d system indeed entails the stronger attraction, and drives its energy much lower than the N Xi threshold, but still above the (KK*-)-K-0 or (KK-)-K-*0 thresholds. We have also studied the ccu d and bbu d systems. Exotic mesons are only expected to exist in the limit of large mass for the two-quark subsystem, bbu d, since the calculated mass is below the (BB*-)-B-0 or (BB-)-B-*0 thresholds.
dc.language.iso eng
dc.relation.ispartof Physical Review D, 2006, vol. 74, num. 5, p. 054018-1-054018-4
dc.subject Física
dc.title Dynamical study of QQ-(u)over-bar (d)over-bar mesons
dc.type journal article es_ES
dc.date.updated 2014-10-08T10:38:26Z
dc.identifier.doi 10.1103/PhysRevD.74.054018
dc.identifier.idgrec 043754
dc.rights.accessRights open access es_ES

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