Universitat Autònoma de Barcelona
Talk presented at the International Workshop on e+e- collisions from Phi to Psi (PHIPSI08), Laboratori Nazionali di Frascati (Rome), Italy, 7-10 April 2008
Altres ajuts: this work has been supported in part under the EU Contract No. MRTN-CT-2006-035482 "FLAVIAnet"
The η- pseudoscalar mixing angle and the gluonium content of the meson are deduced from an updated phenomenological analysis of decays into a vector and a pseudoscalar meson. In absence of gluonium, the value of the mixing angle in the quark-flavour basis is found to be. In presence of gluonium, the values for the mixing angle and the gluonic content of the wave function are and, respectively. Corrections due to non-ideal ω-ϕ mixing are shown to be negligible. The newly reported values of by the BABAR and BES Collaborations are crucial to get a consistent description of data
Article
English
Ministerio de Educación y Ciencia FPA2005-02211
Ministerio de Educación y Ciencia CSD2007-00042
Agència de Gestió d'Ajuts Universitaris i de Recerca 2005/SGR-00994
Nuclear Physics B - Proceedings Supplements ; Vol. 181-182 (Sep. 2008), p. 226-230
open access
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