The physical meaning of scattering matrix singularities in coupled-channel formalisms
High Energy Physics - Phenomenology
2008-11-26 v1 Nuclear Theory
Abstract
The physical meaning of bare and dressed scattering matrix singularities has been investigated. Special attention has been attributed to the role of well known invariance of scattering matrix with respect to the field transformation of the effective Lagrangian. Examples of evaluating bare and dressed quantities in various models are given.
Keywords
Cite
@article{arxiv.0711.1982,
title = {The physical meaning of scattering matrix singularities in coupled-channel formalisms},
author = {S. Capstick and A. Svarc and L. Tiator and J. Gegelia and M. M. Giannini and E. Santopinto and C. Hanhart and S. Scherer and T. -S. H. Lee and T. Sato and N. Suzuki},
journal= {arXiv preprint arXiv:0711.1982},
year = {2008}
}
Comments
14 pages, Summary of the BRAG2007 workshop