Asymmetric accidental composite dark matter

Abstract The goal of this work is to find the simplest UV completion of Accidental Composite Dark Matter Models (ACDM) that can dynamically generate an asymmetry for the DM candidate, the lightest dark baryon (DCb), and simultaneously annihilate the symmetric component. In this framework the DCb is...

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Autores principales:	Salvatore Bottaro, Marco Costa, Oleg Popov
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	Beyond Standard Model Cosmology of Theories beyond the SM CP violation Technicolor and Composite Models Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Acceso en línea:	https://doaj.org/article/cf1fe02bcdfa463fb4158be4a562114b
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spelling	oai:doaj.org-article:cf1fe02bcdfa463fb4158be4a562114b2021-11-14T12:42:03ZAsymmetric accidental composite dark matter10.1007/JHEP11(2021)0551029-8479https://doaj.org/article/cf1fe02bcdfa463fb4158be4a562114b2021-11-01T00:00:00Zhttps://doi.org/10.1007/JHEP11(2021)055https://doaj.org/toc/1029-8479Abstract The goal of this work is to find the simplest UV completion of Accidental Composite Dark Matter Models (ACDM) that can dynamically generate an asymmetry for the DM candidate, the lightest dark baryon (DCb), and simultaneously annihilate the symmetric component. In this framework the DCb is a bound state of a confining SU(N)DC gauge group, and can interact weakly with the visible sector. The constituents of the DCb can possess non-trivial charges under the Standard Model gauge group. The generation of asymmetry for such candidate is a two-flavor variation of the out-of-equilibrium decay of a heavy scalar, with mass M ϕ ≳ 1010 GeV. Below the scale of the scalars, the models recover accidental stability, or long-livedness, of the DM candidate. The symmetric component is annihilated by residual confined interactions provided that the mass of the DCb m DCb ≲ 75 TeV. We implement the mechanism of asymmetry generation, or a variation of it, in all the original ACDM models, managing to generate the correct asymmetry for DCb of masses in this range. For some of the models found, the stability of the DM candidate is not spoiled even considering generic GUT completions or asymmetry generation mechanisms in the visible sector.Salvatore BottaroMarco CostaOleg PopovSpringerOpenarticleBeyond Standard ModelCosmology of Theories beyond the SMCP violationTechnicolor and Composite ModelsNuclear and particle physics. Atomic energy. RadioactivityQC770-798ENJournal of High Energy Physics, Vol 2021, Iss 11, Pp 1-50 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Beyond Standard Model Cosmology of Theories beyond the SM CP violation Technicolor and Composite Models Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
spellingShingle	Beyond Standard Model Cosmology of Theories beyond the SM CP violation Technicolor and Composite Models Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 Salvatore Bottaro Marco Costa Oleg Popov Asymmetric accidental composite dark matter
description	Abstract The goal of this work is to find the simplest UV completion of Accidental Composite Dark Matter Models (ACDM) that can dynamically generate an asymmetry for the DM candidate, the lightest dark baryon (DCb), and simultaneously annihilate the symmetric component. In this framework the DCb is a bound state of a confining SU(N)DC gauge group, and can interact weakly with the visible sector. The constituents of the DCb can possess non-trivial charges under the Standard Model gauge group. The generation of asymmetry for such candidate is a two-flavor variation of the out-of-equilibrium decay of a heavy scalar, with mass M ϕ ≳ 1010 GeV. Below the scale of the scalars, the models recover accidental stability, or long-livedness, of the DM candidate. The symmetric component is annihilated by residual confined interactions provided that the mass of the DCb m DCb ≲ 75 TeV. We implement the mechanism of asymmetry generation, or a variation of it, in all the original ACDM models, managing to generate the correct asymmetry for DCb of masses in this range. For some of the models found, the stability of the DM candidate is not spoiled even considering generic GUT completions or asymmetry generation mechanisms in the visible sector.
format	article
author	Salvatore Bottaro Marco Costa Oleg Popov
author_facet	Salvatore Bottaro Marco Costa Oleg Popov
author_sort	Salvatore Bottaro
title	Asymmetric accidental composite dark matter
title_short	Asymmetric accidental composite dark matter
title_full	Asymmetric accidental composite dark matter
title_fullStr	Asymmetric accidental composite dark matter
title_full_unstemmed	Asymmetric accidental composite dark matter
title_sort	asymmetric accidental composite dark matter
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/cf1fe02bcdfa463fb4158be4a562114b
work_keys_str_mv	AT salvatorebottaro asymmetricaccidentalcompositedarkmatter AT marcocosta asymmetricaccidentalcompositedarkmatter AT olegpopov asymmetricaccidentalcompositedarkmatter
_version_	1718429075265028096

Asymmetric accidental composite dark matter

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