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Top-Yukawa effects on the β-function of the strong coupling in the SM at four-loop level


Zoller, M F (2016). Top-Yukawa effects on the β-function of the strong coupling in the SM at four-loop level. Journal of High Energy Physics, 2016(2):1-17.

Abstract

We present analytical results for the QCD β-function extended to the gaugeless limit of the unbroken phase of the Standard Model at four-loop level. Apart from the strong coupling itself we include the top-Yukawa contribution and the Higgs self-coupling. We observe a non-naive γ5 contribution at order y4tg4s, a feature not encountered in lower loop orders.

Abstract

We present analytical results for the QCD β-function extended to the gaugeless limit of the unbroken phase of the Standard Model at four-loop level. Apart from the strong coupling itself we include the top-Yukawa contribution and the Higgs self-coupling. We observe a non-naive γ5 contribution at order y4tg4s, a feature not encountered in lower loop orders.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:2016
Deposited On:03 Jan 2017 08:37
Last Modified:04 Sep 2017 09:09
Publisher:Springer
ISSN:1029-8479
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1007/JHEP02(2016)095

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