Loop induced type-II seesaw model and GeV dark matter with U(1)B−L gauge symmetry

We propose a model with U(1)B−L gauge symmetry and several new fermions in no conflict with anomaly cancellation where the neutrino masses are given by the vacuum expectation value of Higgs triplet induced at the one-loop level. The new fermions are odd under discrete Z2 symmetry and the lightest on...

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Bibliographic Details
Main Authors: Takaaki Nomura, Hiroshi Okada
Format: Article
Language:English
Published: Elsevier 2017-11-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269317308456
Description
Summary:We propose a model with U(1)B−L gauge symmetry and several new fermions in no conflict with anomaly cancellation where the neutrino masses are given by the vacuum expectation value of Higgs triplet induced at the one-loop level. The new fermions are odd under discrete Z2 symmetry and the lightest one becomes dark matter candidate. We find that the mass of dark matter is typically O(1)-O(10) GeV. Then relic density of the dark matter is discussed.
ISSN:0370-2693
1873-2445