Scattering phase shift determinations from a two-scalar field theory

Daniel Darvish*, Ruairí Brett, John Bulava, Jacob Fallica, Andrew Hanlon, Colin Morningstar

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Abstrakt

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 163 ×48 to 533 ×48 are used, and scattering phase shifts are determined using a Lüscher analysis with multiple partial waves.

OriginalsprogEngelsk
Artikelnummer070
TidsskriftProceedings of Science
Vol/bind334
Antal sider7
ISSN1824-8039
DOI
StatusUdgivet - 2018
Begivenhed36th Annual International Symposium on Lattice Field Theory, LATTICE 2018 - East Lansing, USA
Varighed: 22. jul. 201828. jul. 2018

Konference

Konference36th Annual International Symposium on Lattice Field Theory, LATTICE 2018
LandUSA
ByEast Lansing
Periode22/07/201828/07/2018

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