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The role of f(0)(1710) in the phi omega threshold peak of J/Psi -> gamma phi omega

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The role of f(0)(1710) in the phi omega threshold peak of J/Psi -> gamma phi omega

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dc.contributor.author	Martínez Torres, Alberto
dc.contributor.author	Khemchandani, K. P.
dc.contributor.author	Navarra, F. S.
dc.contributor.author	Nielsen, M.
dc.contributor.author	Oset Báguena, Eulogio
dc.date.accessioned	2014-02-17T14:10:23Z
dc.date.available	2014-02-17T14:10:23Z
dc.date.issued	2013
dc.identifier.citation	Martinez Torres, A. Khemchandani, K.P. Navarra, F.S. Nielsen, M. Oset Báguena, Eulogio 2013 The role of f(0)(1710) in the phi omega threshold peak of J/Psi -> gamma phi omega Physics Letters B 719 4-5 388 393
dc.identifier.uri	http://hdl.handle.net/10550/33006
dc.description.abstract	We study the process J/Psi -> gamma phi omega, measured by the BES experiment, where a neat peak close to the phi omega threshold is observed and is associated to a scalar meson resonance around 1800 MeV. We make the observation that a scalar resonance coupling to phi omega unavoidably couples strongly to K (K) over bar, but no trace of a peak is seen in the K (K) over bar spectrum of the J/Psi -> gamma K (K) over bar at this energy. This serves us to rule out the interpretation of the observed peak as a signal of a new resonance. After this is done, a thorough study is performed on the production of a pair of vector mesons and how its interaction leads necessarily to a peak in the J/Psi -> gamma phi omega reaction close to the phi omega threshold, due to the dynamical generation of the f(0)(1710) resonance by the vector-vector interaction. We then show that both the shape obtained for the phi omega mass distribution, as well as the strength are naturally reproduced by this mechanism. The work also explains why the phi omega peak is observed in the BES experiment and not in other reactions, like B-+/- -> K-+/-phi omega of Belle.
dc.relation.ispartof	Physics Letters B, 2013, vol. 719, num. 4-5, p. 388-393
dc.subject	Física
dc.title	The role of f(0)(1710) in the phi omega threshold peak of J/Psi -> gamma phi omega
dc.type	journal article	es_ES
dc.date.updated	2014-02-17T14:10:23Z
dc.identifier.doi	10.1016/j.physletb.2013.01.036
dc.identifier.idgrec	084550
dc.rights.accessRights	open access	es_ES
dc.identifier.url	10.1016/j.physletb.2013.01.036