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

Journal Article · Tue Jun 10 00:00:00 EDT 2014 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2014/06/021· OSTI ID:22454496

Bélanger, Geneviève ^[1]; Kannike, Kristjan ^[2]; Pukhov, Alexander ^[3]; Raidal, Martti ^[2]

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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)

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.

• Sponsoring Organization: SCOAP3, CERN, Geneva (Switzerland)
• OSTI ID: 22454496
• Journal Information: Journal of Cosmology and Astroparticle Physics, Vol. 2014, 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); ISSN 1475-7516
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ABUNDANCE
ANNIHILATION
COSMOLOGICAL INFLATION
COSMOLOGY
DETECTION
ELEMENTARY PARTICLES
HIGGS BOSONS
NONLUMINOUS MATTER
SYMMETRY
UNITARITY