Light meson spectroscopy with KLOE

Bini, Cesare; De Santis, Antonio; De Zorzi, Guido; Di Domenico, Antonio; Di Donato, C.; The Kloe Collaboration,; Ambrosino, F.; Antonelli, A.; Antonelli, M.; Archilli, F.; Beltrame, P.; Bencivenni, G.; Bini, Cesare; Bloise, C.; Bocchetta, S.; Bossi, F.; Branchini, P.; Capon, G.; Capussela, T.; Ceradini, F.; Ciambrone, P.; De Lucia, E.; Antonio De Santis,; De Simone, P.; Guido De Zorzi,; Denig, A.; Antonio Di Domenico,; Di Donato, C.; Di Micco, B.; Dreucci, M.; Felici, G.; Fiore, Salvatore; Franzini, Paolo; Gatti, C.; Gauzzi, Paolo; Giovannella, S.; Graziani, E.; Jacewicz, M.; Lanfranchi, G.; Lee Franzini, J.; Martini, M.; Massarotti, P.; Meola, S.; Miscetti, S.; Moulson, M.; Muller, S.; Napolitano, M.; Nguyen, F.; Palutan, M.; Passeri, A.; Patera, Vincenzo; Santangelo, P.; Sciascia, B.; Spadaro, T.; Taccini, C.; Tortora, L.; Valente, P.; Venanzoni, G.; Versaci, R.; Xu, G.; Crede, Volker; Paul, Eugenio; Ostrovidov, A.

doi:10.1063/1.3483324

The KLOE experiment has collected an integrated luminosity of about 2.5fb-1 at the φ factory DAφNE. φ radiative decays have been used to investigate the properties of the light scalar mesonswhose structure is still controversial. A direct search of σ(600) → π0π0 decay has been performed with data taken at 1 GeV, where φdecays are suppressed. The whole KLOE data set includes also 100 million η's produced through the radiative decay φ → ηγ and tagged by means of the monochromatic recoil photon. From this sample we have investigated η decays relevant to test ChPT predictions. We present published and preliminary results achieved from full statistics. © 2010 American instituteof physics.

Light meson spectroscopy with KLOE / Bini, C., DE SANTIS, A., DE ZORZI, G., DI DOMENICO, A., C., D.D., The Kloe, C., F., A., A., A., M., A., F., A., P., B., G., B., Cesare, B., C., B., S., B., F., B., P., B., G., C., T., C., F., C., et al.. - In: AIP CONFERENCE PROCEEDINGS. - ISSN 0094-243X. - 1257:(2010), pp. 237-241. (13th International Conference on Hadron Spectroscopy, Hadron 2009 Tallahassee; United States 29 November 2009 through 4 December 2009) [10.1063/1.3483324].