A radiative seesaw model with higher order terms under an alternative U(1)−

2017/11/30 by Takaaki Nomura, Hiroshi Okada
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Dark matter #Gauge symmetry #Gauge theory #Lepton #Lepton number #Massless particle #Neutrino #Neutrino Physics Research #Neutrino oscillation #Nuclear physics #Order (exchange) #Particle physics #Particle physics theoretical and experimental studies #Physics #Seesaw mechanism #Seesaw molecular geometry #Symmetry (geometry) #hep-ph

paper · pdf · doi:10.1016/j.physletb.2018.04.034

17 pages, 6 figures, 2 tables; accepted version for publication in Physics Letters B

openalex created_date 2017/12/04 · arxiv created 2018/04/20 · openalex publication_date 2018/04/21 · arxiv updated 2018/04/25 · openalex updated_date 2026/08/05

Abstract

We propose a model based on an alternative U(1)B−L gauge symmetry with 5 dimensional operators in the Lagrangian, and we construct the neutrino masses at one-loop level, and discuss lepton flavor violations, dark matter, and the effective number of neutrino species due to two massless particles in our model. Then we search allowed region to satisfy the current experimental data of neutrino oscillation and lepton flavor violations without conflict of several constraints such as stability of dark matter and the effective number of neutrino species, depending on normal hierarchy and inverted one.

Citations

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• Planck2013 results. XVI. Cosmological parameters
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