Doubly heavy quark baryon spectroscopy and semileptonic decay

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dc.creatorAlbertus, C.
dc.creatorHernandez, E.
dc.creatorNieves, J.
dc.creatorVerde-Velasco, J. M.
dc.date2006-10-11
dc.date.accessioned2026-07-07T10:25:40Z
dc.date.available2026-07-07T10:25:40Z
dc.descriptionWorking in the framework of a nonrelativistic quark model we evaluate the spectra and semileptonic decay widths for the ground state of doubly heavy $Ξ$ and $Ω$ baryons. We solve the three-body problem using a variational ansatz made possible by the constraints imposed by heavy quark spin symmetry. In order to check the dependence of our resultson the inter-quark interaction we have used five different quarkquark potentials which include Coulomb and hyperfine terms coming fromone-gluon exchange, plus a confining term. Our results for the spectra are in good agreement with a previous calculation done using a Faddeev approach. For the semileptonic decay our results for the total decay widths are in a good agreement with the ones obtained within a relativistic quark model in the quark-diquark approximation.
dc.descriptionTalk given at the IVth International Conference on Quarks an Nuclear Physics (QNP06), Madrid, June 5th-10th 2006
dc.identifierhttps://arxiv.org/abs/hep-ph/0610131
dc.identifierhttp://arxiv.org/abs/hep-ph/0610131
dc.identifierEur.Phys.J.A31:691-694,2007
dc.identifierdoi:10.1140/epja/i2006-10242-2
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/176618
dc.subjectHigh Energy Physics - Phenomenology
dc.titleDoubly heavy quark baryon spectroscopy and semileptonic decay
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