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Title: Gauge Trimming of Neutrino Masses

Abstract

We show that under a new U(1) gauge symmetry, which is non-anomalous in the presence of one ''right-handed neutrino'' per generation and consistent with the standard model Yukawa couplings, the most general fermion charges are determined in terms of four rational parameters. This generalization of the B-L symmetry with generation-dependent lepton charges leads to neutrino masses induced by operators of high dimensionality. Neutrino masses are thus naturally small without invoking physics at energies above the TeV scale, whether neutrinos are Majorana or Dirac fermions. This ''Leptocratic'' Model predicts the existence of light quasi-sterile neutrinos with consequences for cosmology, and implies that collider experiments may reveal the origin of neutrino masses.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
897586
Report Number(s):
FERMILAB-PUB-06-439-T
arXiv eprint number hep-ph/0612017; TRN: US0701471
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Journal Article
Journal Name:
Phys.Rev.D75:055009,2007
Additional Journal Information:
Journal Name: Phys.Rev.D75:055009,2007
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COSMOLOGY; FERMIONS; LEPTONS; NEUTRINOS; ORIGIN; PHYSICS; STANDARD MODEL; SYMMETRY; Phenomenology-HEP

Citation Formats

Chen, Mu-Chun, /Fermilab /UC, Irvine, de Gouvea, Andre, /Northwestern U. /Fermilab, Dobrescu, Bogdan A., and /Fermilab. Gauge Trimming of Neutrino Masses. United States: N. p., 2006. Web.
Chen, Mu-Chun, /Fermilab /UC, Irvine, de Gouvea, Andre, /Northwestern U. /Fermilab, Dobrescu, Bogdan A., & /Fermilab. Gauge Trimming of Neutrino Masses. United States.
Chen, Mu-Chun, /Fermilab /UC, Irvine, de Gouvea, Andre, /Northwestern U. /Fermilab, Dobrescu, Bogdan A., and /Fermilab. Fri . "Gauge Trimming of Neutrino Masses". United States. https://www.osti.gov/servlets/purl/897586.
@article{osti_897586,
title = {Gauge Trimming of Neutrino Masses},
author = {Chen, Mu-Chun and /Fermilab /UC, Irvine and de Gouvea, Andre and /Northwestern U. /Fermilab and Dobrescu, Bogdan A. and /Fermilab},
abstractNote = {We show that under a new U(1) gauge symmetry, which is non-anomalous in the presence of one ''right-handed neutrino'' per generation and consistent with the standard model Yukawa couplings, the most general fermion charges are determined in terms of four rational parameters. This generalization of the B-L symmetry with generation-dependent lepton charges leads to neutrino masses induced by operators of high dimensionality. Neutrino masses are thus naturally small without invoking physics at energies above the TeV scale, whether neutrinos are Majorana or Dirac fermions. This ''Leptocratic'' Model predicts the existence of light quasi-sterile neutrinos with consequences for cosmology, and implies that collider experiments may reveal the origin of neutrino masses.},
doi = {},
journal = {Phys.Rev.D75:055009,2007},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {12}
}