Structure of Lambda(1405) and threshold behavior of piSigma scattering
Nuclear Theory
2011-09-12 v2
Abstract
The scattering length and effective range of the piSigma channel are studied in order to characterize the strangeness S=-1 meson-baryon scattering and the Lambda(1405) resonance. We examine various off-shell dependence of the amplitude in dynamical chiral models to evaluate the threshold quantities with the constraint at the KbarN threshold. We find that the piSigma threshold parameters are important to the structure of the Lambda(1405) resonance and provide further constraints on the subthreshold extrapolation of the KbarN interaction.
Cite
@article{arxiv.1101.5190,
title = {Structure of Lambda(1405) and threshold behavior of piSigma scattering},
author = {Yoichi Ikeda and Tetsuo Hyodo and Daisuke Jido and Hiroyuki Kamano and Toru Sato and Koichi Yazaki},
journal= {arXiv preprint arXiv:1101.5190},
year = {2011}
}
Comments
20 pages, 4 figures, with corrections made after referring process