Dalitz Plot Analysis of the D+ --> pi- pi+ pi+ Decay
High Energy Physics - Experiment
2010-04-08 v2
Abstract
Using 281 pb^{-1} of data recorded by the CLEO-c detector in e^+e^- collisions at the psi(3770), corresponding to 0.78 million D^+D^- pairs, we investigate the substructure of the decay D^+ to pi^- pi^+ pi^+ using the Dalitz plot technique. We find that our data are consistent with the following intermediate states: rho(770)pi^+, f_2(1270)pi^+, f_0(1370)pi^+, f_0(1500)pi^+, f_0(980) pi^+, and sigma pi^+. We confirm large S wave contributions at low pi pi mass. We set upper limits on contributions of other possible intermediate states. We consider three models of the pi pi S wave and find that all of them adequately describe our data.
Keywords
Cite
@article{arxiv.0704.3954,
title = {Dalitz Plot Analysis of the D+ --> pi- pi+ pi+ Decay},
author = {G. Bonvicini and CLEO Collaboration},
journal= {arXiv preprint arXiv:0704.3954},
year = {2010}
}