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Study of B* and B** interactions in I=1 and relationship to the Z(b)(10610), Z(b)(10650) states

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Study of B* and B** interactions in I=1 and relationship to the Z(b)(10610), Z(b)(10650) states

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dc.contributor.author Dias, Jorgivan Morais
dc.contributor.author Aceti, Francesca
dc.contributor.author Oset Báguena, Eulogio
dc.date.accessioned 2016-11-16T09:00:02Z
dc.date.available 2016-11-16T09:00:02Z
dc.date.issued 2015
dc.identifier.citation Dias, Jorgivan Morais Aceti, Francesca Oset Báguena, Eulogio 2015 Study of B* and B** interactions in I=1 and relationship to the Z(b)(10610), Z(b)(10650) states Physical Review D 91 7 076001 - 1 076001 - 14
dc.identifier.uri http://hdl.handle.net/10550/55949
dc.description.abstract We use the local hidden gauge approach in order to study the B (B) over bar* and B*(B) over bar* interactions for isospin I = 1. We show that both interactions via one light meson exchange are not allowed by the Okubo-ZweigIizuka rule and, for that reason, we calculate the contributions due to the exchange of two pions, interacting and noninteracting among themselves, and also due to the heavy vector mesons. Then, to compare all these contributions, we use the potential related to the heavy vector exchange as an effective potential corrected by a factor which takes into account the contribution of the other light meson exchanges. In order to look for poles, this effective potential is used as the kernel of the Bethe-Salpeter equation. As a result, for the B (B) over bar* interaction we find a loosely bound state with mass in the range 10587-10601 MeV, very close to the experimental value of the Z(b)(10610) reported by the Belle Collaboration. For the B*(B) over bar* case, we find a cusp at 10650 MeV for all spin J = 0, 1, 2 cases.
dc.language.iso eng
dc.relation.ispartof Physical Review D, 2015, vol. 91, num. 7, p. 076001 - 1-076001 - 14
dc.subject Física
dc.title Study of B* and B** interactions in I=1 and relationship to the Z(b)(10610), Z(b)(10650) states
dc.type journal article es_ES
dc.date.updated 2016-11-16T09:00:02Z
dc.identifier.doi 10.1103/PhysRevD.91.076001
dc.identifier.idgrec 106195
dc.rights.accessRights open access es_ES

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