skip to main content

Title: Minimal semi-annihilating ℤ{sub N} scalar dark matter

We study the dark matter from an inert doublet and a complex scalar singlet stabilized by ℤ{sub N} symmetries. This field content is the minimal one that allows dimensionless semi-annihilation couplings for N>2. We consider explicitly the ℤ{sub 3} and ℤ{sub 4} cases and take into account constraints from perturbativity, unitarity, vacuum stability, necessity for the electroweak ℤ{sub N} preserving vacuum to be the global minimum, electroweak precision tests, upper limits from direct detection and properties of the Higgs boson. Co-annihilation and semi-annihilation of dark sector particles as well as dark matter conversion significantly modify the cosmic abundance and direct detection phenomenology.
Authors:
 [1] ;  [2] ;  [3] ;  [2]
  1. LAPTH, Université de Savoie, CNRS, B.P.110, Annecy-le-Vieux Cedex, F-74941 (France)
  2. National Institute of Chemical Physics and Biophysics, Rävala 10, Tallinn (Estonia)
  3. Skobeltsyn Institute of Nuclear Physics, Moscow State University, Moscow, 119991 (Russian Federation)
Publication Date:
OSTI Identifier:
22454496
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2014; Journal Issue: 06; Other Information: PUBLISHER-ID: JCAP06(2014)021; OAI: oai:repo.scoap3.org:2768; Article funded by SCOAP3. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 License. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.; Country of input: International Atomic Energy Agency (IAEA)
Sponsoring Org:
SCOAP3, CERN, Geneva (Switzerland)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ABUNDANCE; ANNIHILATION; COSMOLOGICAL INFLATION; COSMOLOGY; DETECTION; ELEMENTARY PARTICLES; HIGGS BOSONS; NONLUMINOUS MATTER; SYMMETRY; UNITARITY