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http://hdl.handle.net/2307/392| Title: | Search for the decay phi -> K0-K0bar-gamma with the KLOE experiment | Authors: | Ambrosino, F. Antonelli, A. Antonelli, M. Archilli, F. Beltrame, P. Bencivenni, G. Bertolucci, S. Bini, C. Bloise, C. Bocchetta, Serena Bossi, F. Branchini, P. Capon, G. Capussela, T. Ceradini, Filippo Ciambrone, P. De Lucia, E. De Santis, A. De Simone, P. De Zorzi, G. Denig, A. Di Domenico, A. Di Donato, C. Di Micco, Biagio Dreucci, M. Felici, G. Fiore, S. Franzini, P. Gatti, C. Gauzzi, P. Giovannella, S. Graziani, E. Lanfranchi, G. Lee-Franzini, J. Martini, M. Massarotti, P. Meola, S. Miscetti, S. Moulson, M. Mueller, S. Murtas, F. Napolitano, M. Nguyen, Federico Palutan, M. Pasqualucci, E. Passeri, A. Patera, V. Santangelo, P. Sciascia, B. Spadaro, T. Testa, M. Tortora, L. Valente, P. Venanzoni, G. Versaci, R. Xu, G. |
Keywords: | e+e− collisions KLOE experiment φ radiative decays K-mesons Scalar mesons |
Issue Date: | Jul-2009 | Publisher: | ELSEVIER SCIENCE BV | Source: | 4 | Abstract: | We have searched for the decay phi -> K0-K0bar-gamma by detecting KS pairs plus a photon and with the KS-mesons decaying to pi+ pi-, in a sample of about 1.5 x 10^9 phi-decays collected by the KLOE experiment at DAFNE. The reaction proceeds through the intermediate states f0(980)-gamma, a0(980)-gamma. We find five events with 3.2 events expected from background processes. We obtain the upperlimit: BR(phi -> K0-Kobar-gamma < 1.9 x 10^(-8) at 90% CL. | URI: | http://hdl.handle.net/2307/392 | ISSN: | 0370-2693 | DOI: | 10.1016/j.physletb.2009.07.013 |
| Appears in Collections: | A - Articolo su rivista X_Dipartimento di Fisica 'Edoardo Amaldi' |
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