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 discrepancy between SM expectation and the measurement of the muon (g - 2) by the E821 experiment at the BNL.

Low energy QCD and ChPT studies with KLOE / F., A., A., A., M., A., F., A., P., B., G., B., Bini, C., C., B., S., B., F., B., P., B., G., C., T., C., F., C., P., C., E. D., L., A. D., S., P. D., S., G. D., Z., A., D., et al.. - In: IL NUOVO CIMENTO C. - ISSN 2037-4909. - 33:(2010), pp. 149-157. [10.1393/ncc/i2011-10715-3]

Low energy QCD and ChPT studies with KLOE

BINI, Cesare;DI DOMENICO, Antonio;FIORE, SALVATORE;GAUZZI, Paolo;PATERA, Vincenzo;
2010

Abstract

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 discrepancy between SM expectation and the measurement of the muon (g - 2) by the E821 experiment at the BNL.
2010
01 Pubblicazione su rivista::01a Articolo in rivista
Low energy QCD and ChPT studies with KLOE / F., A., A., A., M., A., F., A., P., B., G., B., Bini, C., C., B., S., B., F., B., P., B., G., C., T., C., F., C., P., C., E. D., L., A. D., S., P. D., S., G. D., Z., A., D., et al.. - In: IL NUOVO CIMENTO C. - ISSN 2037-4909. - 33:(2010), pp. 149-157. [10.1393/ncc/i2011-10715-3]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/529896
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