Please use this identifier to cite or link to this item:
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 | Authors: | Ambrosino, Fabio Bacci, Cesare Bocchetta, Simona Serena Ceradini, Filippo Di Micco, Biagio Nguyen, Federico |
Keywords: | e+e− collisions KLOE experiment Rare phi decays Scalar mesons Quark model |
Issue Date: | Sep-2009 | Publisher: | Elsevier Science | Source: | 3 | 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. | URI: | http://hdl.handle.net/2307/397 | DOI: | 10.1016/j.physletb.2009.09.022 |
Appears in Collections: | A - Articolo su rivista X_Dipartimento di Fisica 'Edoardo Amaldi' |
Files in This Item:
File | Description | Size | Format | Existing users please Login |
---|---|---|---|---|
plb681-a0.pdf | 790.67 kB | Adobe PDF | Request a copy |
Page view(s)
96
Last Week
0
0
Last month
0
0
checked on Mar 29, 2024
Download(s)
9
checked on Mar 29, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.