Scattering phase shift determinations from a two-scalar field theory

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

doi:10.22323/1.334.0070

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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Publikation: Bidrag til tidsskrift › Konferenceartikel › Forskning › peer review

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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.

Originalsprog	Engelsk
Artikelnummer	070
Tidsskrift	Proceedings of Science
Vol/bind	334
Antal sider	7
ISSN	1824-8039
DOI	https://doi.org/10.22323/1.334.0070
Status	Udgivet - 2018
Begivenhed	36th Annual International Symposium on Lattice Field Theory, LATTICE 2018 - East Lansing, USA Varighed: 22. jul. 2018 → 28. jul. 2018

Konference

Konference	36th Annual International Symposium on Lattice Field Theory, LATTICE 2018
Land	USA
By	East Lansing
Periode	22/07/2018 → 28/07/2018

Dokumenter og links

10.22323/1.334.0070Licens: CC BY-NC-ND

Open Access VersionForlagets udgivne version, 826 KBLicens: CC BY-NC-ND

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Citationsformater

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title = "Scattering phase shift determinations from a two-scalar field theory",

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 163 ×48 to 533 ×48 are used, and scattering phase shifts are determined using a L{\"u}scher analysis with multiple partial waves.",

author = "Daniel Darvish and Ruair{\'i} Brett and John Bulava and Jacob Fallica and Andrew Hanlon and Colin Morningstar",

year = "2018",

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language = "English",

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journal = "P o S - Proceedings of Science",

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T1 - Scattering phase shift determinations from a two-scalar field theory

AU - Darvish, Daniel

AU - Brett, Ruairí

AU - Bulava, John

AU - Fallica, Jacob

AU - Hanlon, Andrew

AU - Morningstar, Colin

PY - 2018

Y1 - 2018

N2 - 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.

AB - 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.

U2 - 10.22323/1.334.0070

DO - 10.22323/1.334.0070

M3 - Conference article

AN - SCOPUS:85069974973

VL - 334

JO - P o S - Proceedings of Science

JF - P o S - Proceedings of Science

SN - 1824-8039

M1 - 070

T2 - 36th Annual International Symposium on Lattice Field Theory, LATTICE 2018

Y2 - 22 July 2018 through 28 July 2018

ER -