The reaction pi+ p --> K+ Sigma+ in a unitary coupled-channels model
Nuclear Theory
2011-02-01 v2
Abstract
Elastic pi N scattering and the reaction pi+ p --> K+ Sigma+ are described simultaneously in a unitary coupled-channels approach which respects analyticity. SU(3) flavor symmetry is used to relate the t- and u-channel exchanges that drive the meson-baryon interaction in the different channels. Angular distributions, polarizations, and spin-rotation parameters are compared with available experimental data. The pole structure of the amplitudes is extracted from the analytic continuation.
Keywords
Cite
@article{arxiv.1009.3781,
title = {The reaction pi+ p --> K+ Sigma+ in a unitary coupled-channels model},
author = {M. Döring and C. Hanhart and F. Huang and S. Krewald and U. -G. Meißner and D. Rönchen},
journal= {arXiv preprint arXiv:1009.3781},
year = {2011}
}
Comments
43 pages, 15 figures, Version accepted for publication in Nuclear Physics A