Radiative neutrino mass with scotogenic scalar triplet

Scientific paper - Original scientific paper

• Author: Vedran Brdar
• Author: Ivica Picek
• Author: Branimir Radovčić
• Author's institution: University of Zagreb; Faculty of Science; (Department of Physics)
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Physics

Abstract (english)

We present a radiative one-loop neutrino mass model with hypercharge zero scalar triplet in conjunction with another charged singlet scalar and an additional vectorlike lepton doublet. We study three variants of this mass model: the first one without additional beyond-SM symmetry, the second with imposed DM-stabilizing discrete Z2 symmetry, and the third in which this Z2 symmetry is promoted to the gauge symmetry U(1)D. The two latter cases are scotogenic, with a neutral component of the scalar triplet as a dark matter candidate. In first scotogenic model the Z2-odd dark matter candidate is at the multi-TeV mass scale, so that all new degrees of freedom are beyond the direct reach of the LHC. In second scotogenic setup, with broken U(1)D symmetry the model may have LHC signatures or be relevant to astrophysical observations, depending on the scale of U(1)D breaking.

• Keywords (english): neutrino mass; dark matter
• Language: english
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Peer review - international
• Publication version: Published version
• Journal title: Physics Letters B
• Numbering: vol. 728, pp. 198-201
• p-ISSN: 0370-2693
• DOI: https://doi.org/10.1016/j.physletb.2013.11.045
• URN:NBN: urn:nbn:hr:217:309527
• Publication: 2014
• Project: Number: 119-0982930-1016; Title (croatian): Elementarne čestice, teorija polja i kozmologija; Leader: Ivica Picek; Jurisdiction: Croatia; Funding stream: ZP
• Document URL: https://www.sciencedirect.com/science/article/pii/S0370269313009489
• Type of resource: Text
• Access conditions: Open access
• Public note: © 2013 The Authors. Published by Elsevier B.V. All rights reserved. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Funded by SCOAP3. Received 18 October 2013; Received in revised form 14 November 2013; Accepted 19 November 2013; Available online 22 November 2013; Published 20 January 2014.
• Created on: 2019-11-27 21:28:50