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dc.contributor.authorAmbrosino, F.-
dc.contributor.authorAntonelli, A.-
dc.contributor.authorAntonelli, M.-
dc.contributor.authorArchilli, F.-
dc.contributor.authorBeltrame, P.-
dc.contributor.authorBencivenni, G.-
dc.contributor.authorBertolucci, S.-
dc.contributor.authorBini, C.-
dc.contributor.authorBloise, C.-
dc.contributor.authorBocchetta, Simona-
dc.contributor.authorBossi, F.-
dc.contributor.authorBranchini, Paolo-
dc.contributor.authorCapon, G.-
dc.contributor.authorCapussela, T.-
dc.contributor.authorCeradini, Filippo-
dc.contributor.authorCiambrone, P.-
dc.contributor.authorDe Lucia, E.-
dc.contributor.authorDe Santis, A.-
dc.contributor.authorDe Simone, P.-
dc.contributor.authorDe Zorzi, G.-
dc.contributor.authorDenig, A.-
dc.contributor.authorDi Domenico, A.-
dc.contributor.authorDi Donato, C.-
dc.contributor.authorDi Micco, Biagio-
dc.contributor.authorDreucci, M.-
dc.contributor.authorFelici, G.-
dc.contributor.authorFiore, S.-
dc.contributor.authorFranzini, P.-
dc.contributor.authorGatti, C.-
dc.contributor.authorGauzzi, P.-
dc.contributor.authorGiovannella, S.-
dc.contributor.authorGraziani, Enrico-
dc.contributor.authorJacewicz, M.-
dc.contributor.authorLanfranchi, G.-
dc.contributor.authorLee-Franzini, J.-
dc.contributor.authorMartini, M.-
dc.contributor.authorMassarotti, P.-
dc.contributor.authorMeola, S.-
dc.contributor.authorMiscetti, S.-
dc.contributor.authorMoulson, M.-
dc.contributor.authorMueller, S.-
dc.contributor.authorMurtas, F.-
dc.contributor.authorNapolitano, M.-
dc.contributor.authorNguyen, Federico-
dc.contributor.authorPalutan, M.-
dc.contributor.authorPasqualucci, E.-
dc.contributor.authorPasseri, Antonio-
dc.contributor.authorPatera, V.-
dc.contributor.authorSantangelo, P.-
dc.contributor.authorSciascia, B.-
dc.contributor.authorSpadaro, T.-
dc.contributor.authorTesta, M.-
dc.contributor.authorTortora, Ludovico-
dc.contributor.authorValente, P.-
dc.contributor.authorVenanzoni, G.-
dc.contributor.authorVersaci, R.-
dc.contributor.authorXu, G.-
dc.description.abstractWe update the values of the eta-eta' mixing angle and of the eta' gluonium content by fitting our measurement R-phi = BR(phi -> etagamma)/BR(phi -> eta gamma) together with several vector meson radiative decays to pseudoscalars (V -> P gamma), pseudoscalar mesons radiative decays to vectors (P -> V gamma) and the eta' -> gamma gamma,pi(0) -> gamma gamma widths. From the fit we extract a gluonium fraction of Z(G)(2) = 0.12 +/- 0.04, the pseudoscalar mixing angle psi(P) = (40.4 +/- 0.6) degrees and the phi - omega mixing angle psi(V)= (3.32 +/- 0.09)degrees. Z(G)(2) and psi(P) are fairly consistent with those previously published. We also evaluate the impact on the eta' gluonium content determination of future experimental improvements of the eta' branching ratios and decay width.en
dc.publisherInstitute of Physics Publishingen
dc.relation.ispartofJournal of High Energy Physicsen
dc.subjecte+e− collisionsen
dc.subjectKLOE experimenten
dc.subjectPseudoscalar mesonsen
dc.subjectPhenomenological modelsen
dc.titleA global fit to determine the pseudoscalar mixing angle and the gluonium content of the eta ' mesonen
dc.subject.miurSettori Disciplinari MIUR::Scienze fisicheen
dc.subject.miurScienze fisiche-
dc.subject.isicruiCategorie ISI-CRUI::Scienze fisicheen
dc.subject.isicruiScienze fisiche-
dc.subject.anagraferoma3Scienze fisicheen
dc.description.romatrecurrentDipartimento di Fisica 'Edoardo Amaldi'*
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