Resonance Scattering Phase Shifts in a 2-d Lattice Model
High Energy Physics - Lattice
2009-10-22 v1
Abstract
We study a simple 2-d model representing two fields with different mass and a 3-point coupling term. The phase shift in the resonating 2-particle channel is determined from the energy spectrum obtained in Monte Carlo simulations on finite lattices. Masses and wave function renormalization constants of the fields as well as mass and width of the resonance are determined and discussed. The representation of scattering states in terms of the considered operators is analysed.
Keywords
Cite
@article{arxiv.hep-lat/9206004,
title = {Resonance Scattering Phase Shifts in a 2-d Lattice Model},
author = {C. R. Gattringer and C. B. Lang},
journal= {arXiv preprint arXiv:hep-lat/9206004},
year = {2009}
}
Comments
24 p + 8 PS-figures, UNIGRAZ-UTP-04-05-92