Isospin breaking exposed in f0(980)- a0(980) mixing
High Energy Physics - Phenomenology
2010-11-15 v1
Abstract
We suggest that mixing between the f0(980) and a0(980), due to their dynamical interaction with the nearby KKbar thresholds, can give rise to a significantly enhanced production rate of a0(980) relative to a2(1320) in pp -> ps (eta pi0) pf as xF -> 0. The peaking of the cross section as phi -> 0 should also occur. We show that such effects are seen in data and deduce that the f0(980) - a0(980) mixing intensity is 8 +/- 3 %.
Cite
@article{arxiv.hep-ph/0008066,
title = {Isospin breaking exposed in f0(980)- a0(980) mixing},
author = {F. E. Close and A. Kirk},
journal= {arXiv preprint arXiv:hep-ph/0008066},
year = {2010}
}
Comments
11 pages, Latex, 3 Figures