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.
Determination eta -> pi(+) pi(-) pi(0) Dlitz plot slopes and asymmetries with the KLOE detector
Martini M;Meola S;
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.File in questo prodotto:
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