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Hyperfine mixing in b -> c semileptonic decay of doubly heavy baryons

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Hyperfine mixing in b -> c semileptonic decay of doubly heavy baryons

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dc.contributor.author Albertus, Conrado
dc.contributor.author Hernández Gajate, Eliecer
dc.contributor.author Nieves Pamplona, Juan Miguel
dc.date.accessioned 2014-10-24T07:16:09Z
dc.date.available 2014-10-24T07:16:09Z
dc.date.issued 2010
dc.identifier.citation Albertus, Conrado Hernández Gajate, Eliecer Nieves Pamplona, Juan Miguel 2010 Hyperfine mixing in b -> c semileptonic decay of doubly heavy baryons Physics Letters B 683 1 21 25
dc.identifier.uri http://hdl.handle.net/10550/39321
dc.description.abstract We qualitatively corroborate the results of [W. Roberts, M. Pervin, Int. J. Mod. Phys. A 24 (2009) 2401] according to which hyperfine mixing greatly affects the decay widths of b -> c semileptonic decays involving doubly heavy bc baryons. However, our predictions for the decay widths of the unmixed states differ from those reported in the work of Roberts and Pervin by a factor of 2, and this discrepancy translates to the mixed case. We further show that the predictions of heavy quark spin symmetry, might be used in the future to experimentally extract information on the admixtures in the actual physical bc baryons, in a model independent manner.
dc.language.iso eng
dc.relation.ispartof Physics Letters B, 2010, vol. 683, num. 1, p. 21-25
dc.subject Física
dc.title Hyperfine mixing in b -> c semileptonic decay of doubly heavy baryons
dc.type journal article es_ES
dc.date.updated 2014-10-24T07:16:09Z
dc.identifier.doi 10.1016/j.physletb.2009.11.048
dc.identifier.idgrec 062693
dc.rights.accessRights open access es_ES

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