arXiv:hep-ph/0611094·v1·High Energy Physics — Phenomenology
Model-independent resonance parameter extraction using the trace of K and T matrices
S. Ceci🇭🇷 · A. Svarc🇭🇷 · B. Zauner🇭🇷 · M. Manley🇺🇸 · S. Capstick🇺🇸
Abstract
A model-independent method for the determination of Breit-Wigner resonance parameters is presented. The method is based on eliminating the dependence on the choice of channel basis by analyzing the trace of the K and T matrices in the coupled-channel formalism, rather than individual matrix elements of the multichannel scattering matrix.
Comments: 6 pages, 16 figures