Lepton-number-charged scalars and neutrino beamstrahlung

Jeffrey M. Berryman, Andre Luiz De Gouvea, Kevin J. Kelly, Yue Zhang

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Experimentally, baryon number minus lepton number, B-L, appears to be a good global symmetry of nature. We explore the consequences of the existence of gauge-singlet scalar fields charged under B-L-dubbed lepton-number-charged scalars (LeNCSs) - and postulate that these couple to the standard model degrees of freedom in such a way that B-L is conserved even at the nonrenormalizable level. In this framework, neutrinos are Dirac fermions. Including only the lowest mass-dimension effective operators, some of the LeNCSs couple predominantly to neutrinos and may be produced in terrestrial neutrino experiments. We examine several existing constraints from particle physics, astrophysics, and cosmology to the existence of a LeNCS carrying B-L charge equal to two, and discuss the emission of LeNCSs via "neutrino beamstrahlung," which occurs every once in a while when neutrinos scatter off of ordinary matter. We identify regions of the parameter space where existing and future neutrino experiments, including the Deep Underground Neutrino Experiment, are at the frontier of searches for such new phenomena.

Original languageEnglish (US)
Article number076010
JournalPhysical Review D
Volume97
Issue number7
DOIs
StatePublished - Apr 1 2018

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leptons
neutrinos
scalars
axioms
cosmology
baryons
astrophysics
degrees of freedom
fermions
operators
physics
symmetry

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Berryman, Jeffrey M. ; De Gouvea, Andre Luiz ; Kelly, Kevin J. ; Zhang, Yue. / Lepton-number-charged scalars and neutrino beamstrahlung. In: Physical Review D. 2018 ; Vol. 97, No. 7.
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Lepton-number-charged scalars and neutrino beamstrahlung. / Berryman, Jeffrey M.; De Gouvea, Andre Luiz; Kelly, Kevin J.; Zhang, Yue.

In: Physical Review D, Vol. 97, No. 7, 076010, 01.04.2018.

Research output: Contribution to journalArticle

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