Meson model for f_0(980) production in peripheral pion-nucleon reactions
High Energy Physics - Phenomenology
2010-11-15 v3
Abstract
The Juelich model for pion-pion-scattering, based on an effective meson-meson Lagrangian is applied to the analysis of the S-wave production amplitudes derived from the BNL E852 experiment pi^- p -> pi^0 pi^0 n for a pion momentum of 18.3 GeV. The unexpected strong dependence of the S-wave partial wave amplitude on the momentum transfer between the proton and neutron in the vicinity of the f_0(980) resonance is explained in our analysis as interference effect between the correlated and uncorrelated pi^0 pi^0 pairs.
Cite
@article{arxiv.hep-ph/0212056,
title = {Meson model for f_0(980) production in peripheral pion-nucleon reactions},
author = {F. P. Sassen and S. Krewald and J. Speth},
journal= {arXiv preprint arXiv:hep-ph/0212056},
year = {2010}
}
Comments
6 pages, 7 figures, formulas added, typos removed, new figures