Scattering phase shift determinations from a two-scalar field theory
High Energy Physics - Lattice
2018-10-29 v1
Abstract
A field theory involving two interacting scalar fields, previously studied by Rummukainen and Gottlieb, is revisited. Our study is not restricted to the limit of large quartic couplings, and a Symanzik-improved action is used so that continuum dispersion relations work well. The Metropolis method, combined with a local microcanonical updating algorithm, is employed in our Monte Carlo calculations. Isotropic lattices ranging from to are used, and scattering phase shifts are determined using a L\"uscher analysis with multiple partial waves.
Keywords
Cite
@article{arxiv.1810.11433,
title = {Scattering phase shift determinations from a two-scalar field theory},
author = {Daniel Darvish and Ruairí Brett and John Bulava and Jacob Fallica and Andrew Hanlon and Colin Morningstar},
journal= {arXiv preprint arXiv:1810.11433},
year = {2018}
}
Comments
7 pages, 7 figures, proceedings for The 36th Annual International Symposium on Lattice Field Theory