Prediction of a Z(c)(4000) state and relationship with the claimed Z(c)(4025)
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Prediction of a Z(c)(4000) state and relationship with the claimed Z(c)(4025)

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Prediction of a Z(c)(4000) state and relationship with the claimed Z(c)(4025)

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dc.contributor.author Aceti, Francesca
dc.contributor.author Bayar, Melahat
dc.contributor.author Dias, Jorgivan Morais
dc.contributor.author Oset Báguena, Eulogio
dc.date.accessioned 2016-04-22T07:39:11Z
dc.date.available 2016-04-22T07:39:11Z
dc.date.issued 2014
dc.identifier.uri http://hdl.handle.net/10550/52981
dc.description.abstract After discussing the OZI suppression of one light meson exchange in the interaction of with isospin I = 1 , we study the contribution of the two-pion exchange to the interaction and the exchange of heavy vectors, J/psi for diagonal transitions and D-* for transitions of to J/psi rho. We find these latter mechanisms to be weak, but enough to barely bind the system in J = 2 with a mass around 4000 MeV, while the effect of the two-pion exchange is a net attraction, though weaker than that from heavy-vector exchange. We discuss this state and try to relate it to the Z (c) (4025) state, above the threshold, claimed in an experiment at BES from an enhancement of the distribution close to threshold. Together with the results from a recent reanalysis of the BES experiment showing that it is compatible with a J = 2 state below threshold around 3990 MeV, we conclude that the BES experiment could show the existence of the state that we find in our approach.
dc.language.iso eng
dc.relation.ispartof European Physical Journal A, 2014, vol. 50, num. 6, p. 103-1-103-13
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Aceti, Francesca Bayar, Melahat Dias, Jorgivan Morais Oset Báguena, Eulogio 2014 Prediction of a Z(c)(4000) state and relationship with the claimed Z(c)(4025) European Physical Journal A 50 6 103-1 103-13
dc.subject Física
dc.title Prediction of a Z(c)(4000) state and relationship with the claimed Z(c)(4025)
dc.type info:eu-repo/semantics/article
dc.date.updated 2016-04-22T07:39:12Z
dc.identifier.doi http://dx.doi.org/10.1140/epja/i2014-14103-1
dc.identifier.idgrec 099468

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