http://dspace-roma3.caspur.it:80 The DSpace digital repository system captures, stores, indexes, preserves, and distributes digital research material. 2013-06-19T15:31:59Z http://hdl.handle.net/2307/397 <Title>Study of the a0(980) meson via the radiative decay phi -> eta pi0 gamma with the KLOE detector</Title> <Authors>Ambrosino, Fabio; Bacci, Cesare; Bocchetta, Simona Serena; Ceradini, Filippo; Di Micco, Biagio; Nguyen, Federico</Authors> <Issue Date>2009-09</Issue Date> <Is part of>Physics Letters B</Is part of> <Volume>681</Volume> <Pages>5-13</Pages> <Abstract>We have studied the phi-> a0(980) gamma process with the KLOE detector at the Frascati phi-factory DAFNE by detecting the phi -> eta pi0 gamma decays in the final states with η -> gamma gamma and eta -> pi+ pi- pi0. We have measured the branching ratios for both final states: Br(phi -> eta pi0 gamma) = (7.01 ± 0.10 ± 0.20)×10−5 and (7.12 ± 0.13 ± 0.22)×10−5, respectively. We have also extracted the a0(980) mass and its couplings to eta-pi0, K+K−, and to the φ-meson from the fit of the eta-pi0 invariant mass distributions using different phenomenological models.</Abstract> 2009-08-31T22:00:00Z http://hdl.handle.net/2307/328 <Title>Scalar mesons with the KLOE experiment</Title> <Authors>Ambrosino, Fabio; Bacci, Cesare; Bocchetta, Simona Serena; Ceradini, Filippo; Di Micco, Biagio; Nguyen, Federico</Authors> <Issue Date>2009-01</Issue Date> <Is part of>Nuclear Physics B Proceedings Supplements</Is part of> <Volume>186</Volume> <Pages>290-293</Pages> <Abstract>New results concerning the scalar mesons f0(980) produced in the φ → ππγ decays, and the a0(980) scalar mesons in the φ → a0(980)γ → ηπ0γ decays, are presented.</Abstract> 2008-12-31T23:00:00Z