A Sub-GeV Low Mass Hidden Dark Sector of SU(2) H × U(1) X

Abstract We present a detailed study of the non-abelian vector dark matter candidate W t with a MeV–GeV low mass range, accompanied by a dark photon A′ and a dark Z′ of similar masses, in the context of a gauged two-Higgs-doublet model with the hidden gauge group that has the same structure as the S...

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Autores principales:	Raymundo Ramos, Van Que Tran, Tzu-Chiang Yuan
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	Beyond Standard Model Gauge Symmetry Spontaneous Symmetry Breaking Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Acceso en línea:	https://doaj.org/article/98be8f62c5e4464281be7a5066734d59
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spelling	oai:doaj.org-article:98be8f62c5e4464281be7a5066734d592021-11-21T12:41:15ZA Sub-GeV Low Mass Hidden Dark Sector of SU(2) H × U(1) X10.1007/JHEP11(2021)1121029-8479https://doaj.org/article/98be8f62c5e4464281be7a5066734d592021-11-01T00:00:00Zhttps://doi.org/10.1007/JHEP11(2021)112https://doaj.org/toc/1029-8479Abstract We present a detailed study of the non-abelian vector dark matter candidate W t with a MeV–GeV low mass range, accompanied by a dark photon A′ and a dark Z′ of similar masses, in the context of a gauged two-Higgs-doublet model with the hidden gauge group that has the same structure as the Standard Model electroweak gauge group. The stability of dark matter is protected by an accidental discrete Z 2 symmetry (h-parity) which was usually imposed ad hoc by hand. We examine the model by taking into account various experimental constraints including dark photon searches at NA48, NA64, E141, ν-CAL, BaBar and LHCb experiments, electroweak precision data from LEP, relic density from Planck satellite, direct (indirect) detection of dark matter from CRESST-III, DarkSide-50, XENON1T (Fermi-LAT), and collider physics from the LHC. The theoretical requirements of bounded from below of the scalar potential and tree level perturbative unitarity of the scalar sector are also imposed. The viable parameter space of the model consistent with all the constraints is exhibited. While a dark Z′ can be the dominant contribution in the relic density due to resonant annihilation of dark matter, a dark photon is crucial to dark matter direct detection. We also demonstrate that the parameter space can be further probed by various sub-GeV direct dark matter experimental searches at CDEX, NEWS-G and SuperCDMS in the near future.Raymundo RamosVan Que TranTzu-Chiang YuanSpringerOpenarticleBeyond Standard ModelGauge SymmetrySpontaneous Symmetry BreakingNuclear and particle physics. Atomic energy. RadioactivityQC770-798ENJournal of High Energy Physics, Vol 2021, Iss 11, Pp 1-36 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Beyond Standard Model Gauge Symmetry Spontaneous Symmetry Breaking Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
spellingShingle	Beyond Standard Model Gauge Symmetry Spontaneous Symmetry Breaking Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 Raymundo Ramos Van Que Tran Tzu-Chiang Yuan A Sub-GeV Low Mass Hidden Dark Sector of SU(2) H × U(1) X
description	Abstract We present a detailed study of the non-abelian vector dark matter candidate W t with a MeV–GeV low mass range, accompanied by a dark photon A′ and a dark Z′ of similar masses, in the context of a gauged two-Higgs-doublet model with the hidden gauge group that has the same structure as the Standard Model electroweak gauge group. The stability of dark matter is protected by an accidental discrete Z 2 symmetry (h-parity) which was usually imposed ad hoc by hand. We examine the model by taking into account various experimental constraints including dark photon searches at NA48, NA64, E141, ν-CAL, BaBar and LHCb experiments, electroweak precision data from LEP, relic density from Planck satellite, direct (indirect) detection of dark matter from CRESST-III, DarkSide-50, XENON1T (Fermi-LAT), and collider physics from the LHC. The theoretical requirements of bounded from below of the scalar potential and tree level perturbative unitarity of the scalar sector are also imposed. The viable parameter space of the model consistent with all the constraints is exhibited. While a dark Z′ can be the dominant contribution in the relic density due to resonant annihilation of dark matter, a dark photon is crucial to dark matter direct detection. We also demonstrate that the parameter space can be further probed by various sub-GeV direct dark matter experimental searches at CDEX, NEWS-G and SuperCDMS in the near future.
format	article
author	Raymundo Ramos Van Que Tran Tzu-Chiang Yuan
author_facet	Raymundo Ramos Van Que Tran Tzu-Chiang Yuan
author_sort	Raymundo Ramos
title	A Sub-GeV Low Mass Hidden Dark Sector of SU(2) H × U(1) X
title_short	A Sub-GeV Low Mass Hidden Dark Sector of SU(2) H × U(1) X
title_full	A Sub-GeV Low Mass Hidden Dark Sector of SU(2) H × U(1) X
title_fullStr	A Sub-GeV Low Mass Hidden Dark Sector of SU(2) H × U(1) X
title_full_unstemmed	A Sub-GeV Low Mass Hidden Dark Sector of SU(2) H × U(1) X
title_sort	sub-gev low mass hidden dark sector of su(2) h × u(1) x
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/98be8f62c5e4464281be7a5066734d59
work_keys_str_mv	AT raymundoramos asubgevlowmasshiddendarksectorofsu2hu1x AT vanquetran asubgevlowmasshiddendarksectorofsu2hu1x AT tzuchiangyuan asubgevlowmasshiddendarksectorofsu2hu1x AT raymundoramos subgevlowmasshiddendarksectorofsu2hu1x AT vanquetran subgevlowmasshiddendarksectorofsu2hu1x AT tzuchiangyuan subgevlowmasshiddendarksectorofsu2hu1x
_version_	1718418900958314496

A Sub-GeV Low Mass Hidden Dark Sector of SU(2) H × U(1) X

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