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Testable two-loop radiative neutrino mass model based on an LLQdcQdc e ffective operator
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| Organization: | University of Melbourne |
| Department: | ARC Centre of Excellence for Particle Physics at the Terascale, School of Physics |
| Organization: | University of Melbourne |
| Department: | ARC Centre of Excellence for Particle Physics at the Terascale, School of Physics |
| Organization: | University of Melbourne |
| Department: | ARC Centre of Excellence for Particle Physics at the Terascale, School of Physics |
| Organization: | University of Melbourne |
| Department: | ARC Centre of Excellence for Particle Physics at the Terascale |
| Organization: | University of Melbourne |
| Department: | ARC Centre of Excellence for Particle Physics at the Terascale, School of Physics |
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| Journal of High Energy Physics |
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A new two-loop radiative Majorana neutrino mass model is constructed from the gauge-invariant e ective operator LiLjQkdcQldcikjl that violates lepton number conservation by two units. The ultraviolet completion features two scalar leptoquark avors and a color-octet Majorana fermion. We show that there exists a region of parameter space where the neutrino oscillation data can be tted while simultaneously meeting avorviolation and collider bounds. The model is testable through lepton avor-violating processes such as ! e , ! eee, and N ! eN 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.
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Beyond Standard Model, Neutrino Physics
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