Phase Motion in the Scalar Low-Mass pi+pi- Amplitude in D+ -> pi-pi+pi+ Decay
High Energy Physics - Experiment
2008-11-26 v2
Abstract
Applying the Amplitude Difference method to Fermilab experiment E791 D+ -> pi-pi+pi+ data, we measure the low mass pi+pi- phase motion. Our results suggest a significant phase variation, compatible with the existence of an isoscalar sigma(500) meson, as previously reported using an isobar model fit to the full Dalitz-plot density.
Cite
@article{arxiv.hep-ex/0405019,
title = {Phase Motion in the Scalar Low-Mass pi+pi- Amplitude in D+ -> pi-pi+pi+ Decay},
author = {Ignacio Bediaga and Jussara M. de Miranda},
journal= {arXiv preprint arXiv:hep-ex/0405019},
year = {2008}
}
Comments
12 pages, 8 figures Accepted for publication at PLB