Dark matter electromagnetic dipoles: the WIMP expectation

Abstract We perform a systematic study of the electric and magnetic dipole moments of dark matter (DM) that are induced at the one-loop level when DM experiences four-fermion interactions with Standard Model (SM) charged fermions. Related to their loop nature these moments can largely depend on the...

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Autores principales:	Thomas Hambye, Xun-Jie Xu
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	Cosmology of Theories beyond the SM Beyond Standard Model Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Acceso en línea:	https://doaj.org/article/5c83a7a486f1458bae23ff0083699b51
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spelling	oai:doaj.org-article:5c83a7a486f1458bae23ff0083699b512021-11-21T12:41:40ZDark matter electromagnetic dipoles: the WIMP expectation10.1007/JHEP11(2021)1561029-8479https://doaj.org/article/5c83a7a486f1458bae23ff0083699b512021-11-01T00:00:00Zhttps://doi.org/10.1007/JHEP11(2021)156https://doaj.org/toc/1029-8479Abstract We perform a systematic study of the electric and magnetic dipole moments of dark matter (DM) that are induced at the one-loop level when DM experiences four-fermion interactions with Standard Model (SM) charged fermions. Related to their loop nature these moments can largely depend on the UV completion at the origin of the four-fermion operators. We illustrate this property by considering explicitly two simple ways to generate these operators, from t- or s-channel tree-level exchange. Fixing the strength of these interactions from the DM relic density constraint, we obtain in particular a magnetic moment that, depending on the interaction considered, lies typically between 10 −20 to 10 −23 ecm or identically vanishes. These non-vanishing values induce, via photon exchange, DM-nucleus scattering cross sections that could be probed by current or near future direct detection experiments.Thomas HambyeXun-Jie XuSpringerOpenarticleCosmology of Theories beyond the SMBeyond Standard ModelNuclear and particle physics. Atomic energy. RadioactivityQC770-798ENJournal of High Energy Physics, Vol 2021, Iss 11, Pp 1-28 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Cosmology of Theories beyond the SM Beyond Standard Model Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
spellingShingle	Cosmology of Theories beyond the SM Beyond Standard Model Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 Thomas Hambye Xun-Jie Xu Dark matter electromagnetic dipoles: the WIMP expectation
description	Abstract We perform a systematic study of the electric and magnetic dipole moments of dark matter (DM) that are induced at the one-loop level when DM experiences four-fermion interactions with Standard Model (SM) charged fermions. Related to their loop nature these moments can largely depend on the UV completion at the origin of the four-fermion operators. We illustrate this property by considering explicitly two simple ways to generate these operators, from t- or s-channel tree-level exchange. Fixing the strength of these interactions from the DM relic density constraint, we obtain in particular a magnetic moment that, depending on the interaction considered, lies typically between 10 −20 to 10 −23 ecm or identically vanishes. These non-vanishing values induce, via photon exchange, DM-nucleus scattering cross sections that could be probed by current or near future direct detection experiments.
format	article
author	Thomas Hambye Xun-Jie Xu
author_facet	Thomas Hambye Xun-Jie Xu
author_sort	Thomas Hambye
title	Dark matter electromagnetic dipoles: the WIMP expectation
title_short	Dark matter electromagnetic dipoles: the WIMP expectation
title_full	Dark matter electromagnetic dipoles: the WIMP expectation
title_fullStr	Dark matter electromagnetic dipoles: the WIMP expectation
title_full_unstemmed	Dark matter electromagnetic dipoles: the WIMP expectation
title_sort	dark matter electromagnetic dipoles: the wimp expectation
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/5c83a7a486f1458bae23ff0083699b51
work_keys_str_mv	AT thomashambye darkmatterelectromagneticdipolesthewimpexpectation AT xunjiexu darkmatterelectromagneticdipolesthewimpexpectation
_version_	1718418824782413824

Dark matter electromagnetic dipoles: the WIMP expectation

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