Low energy QCD and ChPT studies with KLOE
- F., Ambrosino
- A., Antonelli
- M., Antonelli
- F., Archilli
- P., Beltrame
- G., Bencivenni
- Bini, Cesare
- C., Bloise
- S., Bocchetta
- F., Bossi
- P., Branchini
- G., Capon
- T., Capussela
- F., Ceradini
- P., Ciambrone
- E. D., Lucia
- A. D., Santis
- P. D., Simone
- G. D., Zorzi
- A., Denig
- DI DOMENICO, Antonio
- C., Donato
- B., Micco
- M., Dreucci
- G., Felici
- Fiore, Salvatore
- P., Franzini
- C., Gatti
- Gauzzi, Paolo
- S., Giovannella
- E., Graziani
- M., Jacewicz
- G., Lanfranchi
- J., Lee Franzini
- M., Martini
- P., Massarotti
- S., Meola
- S., Miscetti
- M., Moulson
- S., Müller
- F., Murtas
- M., Napolitano
- F., Nguyen
- M., Palutan
- A., Passeri
- Patera, Vincenzo
- P., Santangelo
- B., Sciascia
- T., Spadaro
- L., Tortora
- P., Valente
- G., Venanzoni
- R., Versaci
- G., Xu
DOIAbstract
The KLOE experiment is situated at the Φ factory DAΦNE in Frascati. Φ radiative decays have been used to investigate the properties of the light scalar mesons f 0(980)/a 0(980), whose structure is still controversial. Off-peak data allow to investigate γγ interaction with a consequent scalar/pseudoscalar meson production. From the large sample of the η and η′ produced in Φ → ηγ decay we have studied several η and η′ decays relevant to η/η′ mixing, η′ gluonium content, CP violation searches and tests of ChPT. For the hadronic cross section, the pion form factor in the M ππ invariant mass range (0.592-0.975) GeV has been determined and used in the evaluation of the hadronic contribution to the muon anomaly. The result confirms the 3-σ discrep...
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