We have studied, with the KLOE detector at the DA Phi NE Phi-Factory, the dynamics of the decay eta -> pi(+) pi(-) pi(0) using eta mesons from the decay ->eta gamma for an integrated luminosity L = 450 pb(-1). From a fit to the Dalitz plot density distribution we obtain a precise measurement of the slope parameters. An alternative parametrization relates the pi(+) pi(-) pi(0) slopes to that for eta -> 3 pi degrees showing the consistency of KLOE results for both channels. We also obtain the best confirmation of the C-invariance in the eta -> pi(+) pi(-) pi(0) decay.

Ambrosino, F., Antonelli, A., Antonelli, M., Archilli, F., Bacci, C., Beltrame, P., et al. (2008). Determination of eta -> pi(+) pi(-) pi(0) Dalitz plot slopes and asymmetries with the KLOE detector. JOURNAL OF HIGH ENERGY PHYSICS(5), 1-14 [10.1088/1126-6708/2008/05/006].

Determination of eta -> pi(+) pi(-) pi(0) Dalitz plot slopes and asymmetries with the KLOE detector

CERADINI, Filippo;DI MICCO, Biagio;
2008-01-01

Abstract

We have studied, with the KLOE detector at the DA Phi NE Phi-Factory, the dynamics of the decay eta -> pi(+) pi(-) pi(0) using eta mesons from the decay ->eta gamma for an integrated luminosity L = 450 pb(-1). From a fit to the Dalitz plot density distribution we obtain a precise measurement of the slope parameters. An alternative parametrization relates the pi(+) pi(-) pi(0) slopes to that for eta -> 3 pi degrees showing the consistency of KLOE results for both channels. We also obtain the best confirmation of the C-invariance in the eta -> pi(+) pi(-) pi(0) decay.
2008
Ambrosino, F., Antonelli, A., Antonelli, M., Archilli, F., Bacci, C., Beltrame, P., et al. (2008). Determination of eta -> pi(+) pi(-) pi(0) Dalitz plot slopes and asymmetries with the KLOE detector. JOURNAL OF HIGH ENERGY PHYSICS(5), 1-14 [10.1088/1126-6708/2008/05/006].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/121572
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