Static properties and semileptonic decays of doubly heavy baryons in a nonrelativistic quark model

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dc.creatorAlbertus, C.
dc.creatorHernandez, E.
dc.creatorNieves, J.
dc.creatorVerde-Velasco, J. M.
dc.date2006-10-03
dc.date2008-04-18
dc.date.accessioned2026-07-07T11:43:40Z
dc.date.available2026-07-07T11:43:40Z
dc.descriptionWe evaluate static properties and semileptonic decays for the ground state of doubly heavy $Ξ, Ξ', Ξ^*$ and $Ω, Ω', Ω^*$ baryons. Working in the framework of a nonrelativistic quark model, we solve the three--body problem by means of a variational ansazt made possible by heavy quark spin symmetry constraints. To check the dependence of our results on the inter-quark interaction we use five different quark-quark potentials that include a confining term plus Coulomb and hyperfine terms coming from one--gluon exchange. Our results for static properties (masses, charge and mass radii, magnetic moments...) are, with a few exceptions for the magnetic moments, in good agreement with a previous Faddeev calculation. Our much simpler wave functions are used to evaluate semileptonic decays of doubly heavy $Ξ,Ξ'(J=1/2)$ and $Ω, Ω'(J=1/2)$ baryons. Our results for the decay widths are in good agreement with calculations done within a relativistic quark model in the quark--diquark approximation.
dc.description23 latex pages, 7 figures, 11 tables. Corrected version according to the discussion in the erratum to be published in Eur. Phys. J. A. Eur. Phys. J. A 32, 183 (2007); erratum Eur. Phys. J. A in press, available as online first
dc.identifierhttps://arxiv.org/abs/hep-ph/0610030
dc.identifierhttp://arxiv.org/abs/hep-ph/0610030
dc.identifierEur.Phys.J.A32:183-199,2007; Erratum-ibid.A36:119,2008
dc.identifierdoi:10.1140/epja/i2007-10364-y 10.1140/epja/i2008-10547-0
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/201322
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleStatic properties and semileptonic decays of doubly heavy baryons in a nonrelativistic quark model
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