Asymmetric dark matter and CP violating scatterings in a UV complete model

Journal Article · Wed Oct 21 00:00:00 EDT 2015 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2015/10/048· OSTI ID:22458396

Baldes, Iason; Bell, Nicole F.; Millar, Alexander J.; Volkas, Raymond R. ^[1]

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1. ARC Centre of Excellence for Particle Physics at the Terascale,School of Physics, The University of Melbourne, Victoria, 3010 (Australia)

We explore possible asymmetric dark matter models using CP violating scatterings to generate an asymmetry. In particular, we introduce a new model, based on DM fields coupling to the SM Higgs and lepton doublets, a neutrino portal, and explore its UV completions. We study the CP violation and asymmetry formation of this model, to demonstrate that it is capable of producing the correct abundance of dark matter and the observed matter-antimatter asymmetry. Crucial to achieving this is the introduction of interactions which violate CP with a T{sup 2} dependence.

• Sponsoring Organization: SCOAP3, CERN, Geneva (Switzerland)
• OSTI ID: 22458396
• Journal Information: Journal of Cosmology and Astroparticle Physics, Vol. 2015, Issue 10; Other Information: PUBLISHER-ID: JCAP10(2015)048; OAI: oai:repo.scoap3.org:12352; 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
ANTIMATTER
ASYMMETRY
CP INVARIANCE
HIGGS BOSONS
NEUTRINOS
NONLUMINOUS MATTER
SCATTERING
STANDARD MODEL