Gauge Coupling β Functions to Four-Loop Order in the Standard Model

Joshua Davies; Florian Herren; Colin Poole; Matthias Steinhauser; Anders Eller Thomsen

doi:10.1103/PhysRevLett.124.071803

Gauge Coupling β Functions to Four-Loop Order in the Standard Model

Joshua Davies, Florian Herren, Colin Poole, Matthias Steinhauser, Anders Eller Thomsen

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

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Abstrakt

We compute the β functions of the three standard model gauge couplings to four-loop order in the modified minimal subtraction scheme. At this order a proper definition of γ5 in D=4-2ϵ space-time dimensions is required; however, in our calculation we determine the γ5-dependent terms by exploiting relations with β function coefficients at lower loop orders.

Originalsprog	Engelsk
Artikelnummer	071803
Tidsskrift	Physical Review Letters
Vol/bind	124
Udgave nummer	7
Antal sider	6
ISSN	0031-9007
DOI	https://doi.org/10.1103/PhysRevLett.124.071803
Status	Udgivet - 2020

Dokumenter og links

10.1103/PhysRevLett.124.071803Licens: CC BY

Open Access VersionForlagets udgivne version, 258 KBLicens: CC BY

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Citationsformater

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abstract = "We compute the β functions of the three standard model gauge couplings to four-loop order in the modified minimal subtraction scheme. At this order a proper definition of γ5 in D=4-2ϵ space-time dimensions is required; however, in our calculation we determine the γ5-dependent terms by exploiting relations with β function coefficients at lower loop orders.",

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AU - Herren, Florian

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AU - Steinhauser, Matthias

AU - Thomsen, Anders Eller

PY - 2020

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AB - We compute the β functions of the three standard model gauge couplings to four-loop order in the modified minimal subtraction scheme. At this order a proper definition of γ5 in D=4-2ϵ space-time dimensions is required; however, in our calculation we determine the γ5-dependent terms by exploiting relations with β function coefficients at lower loop orders.

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DO - 10.1103/PhysRevLett.124.071803

M3 - Journal article

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JO - Physical Review Letters

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