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Journal of High Energy Physics

, 2013:118 | Cite as

Testable two-loop radiative neutrino mass model based on an LLQd c Qd c effective operator

  • Paul W. Angel
  • Yi Cai
  • Nicholas L. Rodd
  • Michael A. Schmidt
  • Raymond R. Volkas
Article

Abstract

A new two-loop radiative Majorana neutrino mass model is constructed from the gauge-invariant effective operator L i L j Q k d c Q l d c ϵ ik ϵ jl that violates lepton number conservation by two units. The ultraviolet completion features two scalar leptoquark flavors and a color-octet Majorana fermion. We show that there exists a region of parameter space where the neutrino oscillation data can be fitted while simultaneously meeting flavor-violation and collider bounds. The model is testable through lepton flavor-violating processes such as μeγ, μeee, and μNeN conversion, as well as collider searches for the scalar leptoquarks and color-octet fermion. We computed and compiled a list of necessary Passarino-Veltman integrals up to boxes in the approximation of vanishing external momenta and made them available as a Mathematica package, denoted as ANT.

Keywords

Beyond Standard Model Neutrino Physics 

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Copyright information

© SISSA, Trieste, Italy 2013

Authors and Affiliations

  • Paul W. Angel
    • 1
  • Yi Cai
    • 1
  • Nicholas L. Rodd
    • 1
  • Michael A. Schmidt
    • 1
  • Raymond R. Volkas
    • 1
  1. 1.ARC Centre of Excellence for Particle Physics at the Terascale, School of PhysicsUniversity of MelbourneVictoriaAustralia

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