The role of P-wave inelasticity in J/psi to pi+pi-pi0

Details The role of P-wave inelasticity in J/psi to pi+pi-pi0 The role of P-wave inelasticity in J/psi to pi+pi-pi0

2010-06-22

arxiv.org/abs/1006.4371v1

Phys.Rev.D82:094002,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 10 figures

Scientific paper

10.1103/PhysRevD.82.094002

We discuss the importance of inelasticity in the P-wave pi pi amplitude on the Dalitz distribution of 3pi events in J/psi decay. The inelasticity, which becomes sizable for pi pi masses above 1.4 GeV, is attributed to KK to pi pi rescattering. We construct an analytical model for the two-channel scattering amplitude and use it to solve the dispersion relation for the isobar amplitudes that parametrize the J/psi decay. We present comparisons between theoretical predictions for the Dalitz distribution of 3pi events with available experimental data.

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