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Title: Leptogenesis, radiative neutrino masses and inert Higgs triplet dark matter

Abstract

We extend the standard model by three types of inert fields including Majorana fermion singlets/triplets, real Higgs singlets/triplets and leptonic Higgs doublets. In the presence of a softly broken lepton number and an exactly conserved Z{sub 2} discrete symmetry, these inert fields together can mediate a one-loop diagram for a Majorana neutrino mass generation. The heavier inert fields can decay to realize a successful leptogenesis while the lightest inert field can provide a stable dark matter candidate. As an example, we demonstrate the leptogenesis by the inert Higgs doublet decays. We also perform a systematic study on the inert Higgs triplet dark matter scenario where the interference between the gauge and Higgs portal interactions can significantly affect the dark matter properties.

Authors:
;  [1]
  1. Department of Physics and Astronomy, Shanghai Jiao Tong University,800 Dongchuan Road, Shanghai 200240 (China)
Publication Date:
Sponsoring Org.:
SCOAP3, CERN, Geneva (Switzerland)
OSTI Identifier:
22572081
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2016; Journal Issue: 05; Other Information: PUBLISHER-ID: JCAP05(2016)040; OAI: oai:repo.scoap3.org:15665; cc-by 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)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; FEYNMAN DIAGRAM; HIGGS BOSONS; HIGGS MODEL; MAJORANA FERMIONS; NEUTRINOS; NONLUMINOUS MATTER; PARTICLE DECAY; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; REST MASS; STANDARD MODEL; TRIPLETS

Citation Formats

Lu, Wen-Bin, and Gu, Pei-Hong. Leptogenesis, radiative neutrino masses and inert Higgs triplet dark matter. United States: N. p., 2016. Web. doi:10.1088/1475-7516/2016/05/040.
Lu, Wen-Bin, & Gu, Pei-Hong. Leptogenesis, radiative neutrino masses and inert Higgs triplet dark matter. United States. doi:10.1088/1475-7516/2016/05/040.
Lu, Wen-Bin, and Gu, Pei-Hong. Wed . "Leptogenesis, radiative neutrino masses and inert Higgs triplet dark matter". United States. doi:10.1088/1475-7516/2016/05/040.
@article{osti_22572081,
title = {Leptogenesis, radiative neutrino masses and inert Higgs triplet dark matter},
author = {Lu, Wen-Bin and Gu, Pei-Hong},
abstractNote = {We extend the standard model by three types of inert fields including Majorana fermion singlets/triplets, real Higgs singlets/triplets and leptonic Higgs doublets. In the presence of a softly broken lepton number and an exactly conserved Z{sub 2} discrete symmetry, these inert fields together can mediate a one-loop diagram for a Majorana neutrino mass generation. The heavier inert fields can decay to realize a successful leptogenesis while the lightest inert field can provide a stable dark matter candidate. As an example, we demonstrate the leptogenesis by the inert Higgs doublet decays. We also perform a systematic study on the inert Higgs triplet dark matter scenario where the interference between the gauge and Higgs portal interactions can significantly affect the dark matter properties.},
doi = {10.1088/1475-7516/2016/05/040},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 05,
volume = 2016,
place = {United States},
year = {Wed May 18 00:00:00 EDT 2016},
month = {Wed May 18 00:00:00 EDT 2016}
}