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Prediction of an I=1 D(D)over-bar* state and relationship to the claimed Z(c)(3900), Z(c)(3885)

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Prediction of an I=1 D(D)over-bar* state and relationship to the claimed Z(c)(3900), Z(c)(3885)

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dc.contributor.author	Aceti, Francesca
dc.contributor.author	Bayar, Melahat
dc.contributor.author	Oset Báguena, Eulogio
dc.contributor.author	Martínez Torres, Alberto
dc.contributor.author	Khemchandani, K. P.
dc.contributor.author	Dias, Jorgivan Morais
dc.contributor.author	Navarra, F. S.
dc.contributor.author	Nielsen, M.
dc.date.accessioned	2016-04-22T08:58:09Z
dc.date.available	2016-04-22T08:58:09Z
dc.date.issued	2014
dc.identifier.citation	Aceti, Francesca Bayar, Melahat Oset Báguena, Eulogio Martínez Torres, Alberto Khemchandani, K. P. Dias, Jorgivan Morais Navarra, F. S. Nielsen, M. 2014 Prediction of an I=1 D(D)over-bar* state and relationship to the claimed Z(c)(3900), Z(c)(3885) Physical Review D 90 1 016003 - 1 016003 - 13
dc.identifier.uri	http://hdl.handle.net/10550/52987
dc.description.abstract	We study here the interaction of D (D) over bar* in the isospin I = 1 channel in light of recent theoretical advances that allow us to combine elements of the local hidden gauge approach with heavy quark spin symmetry. We find that the exchange of light q (q) over bar is Okubo-Zweig-Iizuka (OZI) suppressed and thus we concentrate on the exchange of heavy vectors and of two pion exchange. The latter is found to be small compared to the exchange of heavy vectors, which then determines the strength of the interaction. A barely D (D) over bar* bound state decaying into eta(c)rho and pi J/psi is found. At the same time we reanalyze the data of the BESIII experiment on e(+)e(-) -> pi(+/-)(D (D) over bar)(-/+), from where a Z(c)(3885) state was claimed, associated to a peak in the (D (D) over bar)(-/+) invariant mass distribution close to threshold, and we find the data compatible with a resonance with mass around 3875 MeV and width around 30 MeV. We discuss the possibility that this and the Z(c)(3900) state found at BESIII, reconfirmed at 3894 MeV at Belle, or 3885 MeV at CLEO, could all be the same state and correspond to the one that we find theoretically.
dc.language.iso	eng
dc.relation.ispartof	Physical Review D, 2014, vol. 90, num. 1, p. 016003 - 1-016003 - 13
dc.subject	Física
dc.title	Prediction of an I=1 D(D)over-bar* state and relationship to the claimed Z(c)(3900), Z(c)(3885)
dc.type	journal article	es_ES
dc.date.updated	2016-04-22T08:58:10Z
dc.identifier.doi	10.1103/PhysRevD.90.016003
dc.identifier.idgrec	099469
dc.rights.accessRights	open access	es_ES