publication . Article . Preprint . Other literature type . 2019

Vector SIMP dark matter with approximate custodial symmetry

Choi, Soo-Min; Lee, Hyun Min; Mambrini, Yann; Pierre, Mathias;
Open Access English
  • Published: 01 Jul 2019 Journal: Journal of High Energy Physics (issn: 1029-8479, Copyright policy)
  • Publisher: SpringerOpen
  • Country: France
Abstract
We consider a novel scenario for Vector Strongly Interacting Massive Particle (VSIMP) dark matter with local $SU(2)_X\times U(1)_{Z'}$ symmetry in the dark sector. Similarly to the Standard Model, after the dark symmetry is broken spontaneously by the VEVs of dark Higgs fields, the approximate custodial symmetry determines comparable but split masses for $SU(2)_X$ gauge bosons. In this model, we show that $U(1)_{Z'}$-charged gauge boson of $SU(2)_X$ ($X_\pm$) becomes a natural candidate for SIMP dark matter, annihilating through $3\rightarrow 2$ or forbidden $2\rightarrow 2$ annihilations due to gauge self-interactions. On the other hand, the $U(1)_{Z'}$-neutral...
Subjects
arXiv: High Energy Physics::PhenomenologyAstrophysics::Cosmology and Extragalactic Astrophysics
free text keywords: Beyond Standard Model, Cosmology of Theories beyond the SM, Gauge Symmetry, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798, [PHYS]Physics [physics], [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], High Energy Physics - Phenomenology, Nuclear and High Energy Physics, Gauge boson, Strongly interacting massive particle, Particle physics, Physics, Higgs boson, Custodial symmetry, Gauge (firearms), Standard Model, Dark matter
Funded by
EC| ELUSIVES
Project
ELUSIVES
The Elusives Enterprise: Asymmetries of the Invisible Universe
  • Funder: European Commission (EC)
  • Project Code: 674896
  • Funding stream: H2020 | MSCA-ITN-ETN
,
EC| InvisiblesPlus
Project
InvisiblesPlus
InvisiblesPlus
  • Funder: European Commission (EC)
  • Project Code: 690575
  • Funding stream: H2020 | MSCA-RISE
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