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Triquark correlations and pentaquarks in a QCD sum rule approach

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dc.contributor.author	Lee, Hee-Jung
dc.contributor.author	Kochelev, Nikolai
dc.contributor.author	Vento Torres, Vicente
dc.date.accessioned	2015-05-12T11:35:13Z
dc.date.available	2015-05-12T11:35:13Z
dc.date.issued	2005
dc.identifier.citation	Lee, Hee-Jung Kochelev, Nikolai Vento Torres, Vicente 2005 Triquark correlations and pentaquarks in a QCD sum rule approach Physics Letters B 610 1-2 50 60
dc.identifier.uri	http://hdl.handle.net/10550/43734
dc.description.abstract	The role of quark correlations in the description of hadron dynamics in many domains of physics, from low energy dynamics to very hot(dense) systems, is being appreciated. Strong correlations of two quarks (diquark) have been widely investigated in this respect. Recently, we have proposed a dynamical scheme to describe the Θ+ pentaquark in which also three quark correlations (triquark) were instrumental in producing a low mass exotic state. We perform a study, within the QCD sum rule approach including OPE and direct instanton contributions, of triquark correlations and obtain two quasi-bound light uds¯ color quark clusters of 800 MeV and 930 MeV respectively.
dc.language.iso	eng
dc.relation.ispartof	Physics Letters B, 2005, vol. 610, num. 1-2, p. 50-60
dc.subject	Física
dc.title	Triquark correlations and pentaquarks in a QCD sum rule approach
dc.type	journal article	es_ES
dc.date.updated	2015-05-12T11:35:14Z
dc.identifier.doi	10.1016/j.phystetb.2005.01.081
dc.identifier.idgrec	028159
dc.rights.accessRights	open access	es_ES