One-loop corrections to ALP couplings

Abstract The plethora of increasingly precise experiments which hunt for axion-like particles (ALPs), as well as their widely different energy reach, call for the theoretical understanding of ALP couplings at loop-level. We derive the one-loop contributions to ALP-SM effective couplings, including f...

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Autores principales:	J. Bonilla, I. Brivio, M. B. Gavela, V. Sanz
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	Beyond Standard Model Effective Field Theories Renormalization Group Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Acceso en línea:	https://doaj.org/article/faecef408d1440f1bf161b4b4763dafc
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spelling	oai:doaj.org-article:faecef408d1440f1bf161b4b4763dafc2021-11-28T12:39:30ZOne-loop corrections to ALP couplings10.1007/JHEP11(2021)1681029-8479https://doaj.org/article/faecef408d1440f1bf161b4b4763dafc2021-11-01T00:00:00Zhttps://doi.org/10.1007/JHEP11(2021)168https://doaj.org/toc/1029-8479Abstract The plethora of increasingly precise experiments which hunt for axion-like particles (ALPs), as well as their widely different energy reach, call for the theoretical understanding of ALP couplings at loop-level. We derive the one-loop contributions to ALP-SM effective couplings, including finite corrections. The complete leading-order — dimension five — effective linear Lagrangian is considered. The ALP is left off-shell, which is of particular impact on LHC and accelerator searches of ALP couplings to γγ, ZZ, Zγ, WW, gluons and fermions. All results are obtained in the covariant R ξ gauge. A few phenomenological consequences are also explored as illustration, with flavour diagonal channels in the case of fermions: in particular, we explore constraints on the coupling of the ALP to top quarks, that can be extracted from LHC data, from astrophysical sources and from Dark Matter direct detection experiments such as PandaX, LUX and XENON1T. Furthermore, we clarify the relation between alternative ALP bases, the role of gauge anomalous couplings and their interface with chirality-conserving and chirality-flip fermion interactions, and we briefly discuss renormalization group aspects.J. BonillaI. BrivioM. B. GavelaV. SanzSpringerOpenarticleBeyond Standard ModelEffective Field TheoriesRenormalization GroupNuclear and particle physics. Atomic energy. RadioactivityQC770-798ENJournal of High Energy Physics, Vol 2021, Iss 11, Pp 1-57 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Beyond Standard Model Effective Field Theories Renormalization Group Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
spellingShingle	Beyond Standard Model Effective Field Theories Renormalization Group Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 J. Bonilla I. Brivio M. B. Gavela V. Sanz One-loop corrections to ALP couplings
description	Abstract The plethora of increasingly precise experiments which hunt for axion-like particles (ALPs), as well as their widely different energy reach, call for the theoretical understanding of ALP couplings at loop-level. We derive the one-loop contributions to ALP-SM effective couplings, including finite corrections. The complete leading-order — dimension five — effective linear Lagrangian is considered. The ALP is left off-shell, which is of particular impact on LHC and accelerator searches of ALP couplings to γγ, ZZ, Zγ, WW, gluons and fermions. All results are obtained in the covariant R ξ gauge. A few phenomenological consequences are also explored as illustration, with flavour diagonal channels in the case of fermions: in particular, we explore constraints on the coupling of the ALP to top quarks, that can be extracted from LHC data, from astrophysical sources and from Dark Matter direct detection experiments such as PandaX, LUX and XENON1T. Furthermore, we clarify the relation between alternative ALP bases, the role of gauge anomalous couplings and their interface with chirality-conserving and chirality-flip fermion interactions, and we briefly discuss renormalization group aspects.
format	article
author	J. Bonilla I. Brivio M. B. Gavela V. Sanz
author_facet	J. Bonilla I. Brivio M. B. Gavela V. Sanz
author_sort	J. Bonilla
title	One-loop corrections to ALP couplings
title_short	One-loop corrections to ALP couplings
title_full	One-loop corrections to ALP couplings
title_fullStr	One-loop corrections to ALP couplings
title_full_unstemmed	One-loop corrections to ALP couplings
title_sort	one-loop corrections to alp couplings
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/faecef408d1440f1bf161b4b4763dafc
work_keys_str_mv	AT jbonilla oneloopcorrectionstoalpcouplings AT ibrivio oneloopcorrectionstoalpcouplings AT mbgavela oneloopcorrectionstoalpcouplings AT vsanz oneloopcorrectionstoalpcouplings
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One-loop corrections to ALP couplings

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