Testable two-loop radiative neutrino mass model based on an LLQdcQdc effective operator

被引：37

作者：

Angel, Paul W. ^{[1
]}

Cai, Yi ^{[1
]}

Rodd, Nicholas L. ^{[1
]}

Schmidt, Michael A. ^{[1
]}

Volkas, Raymond R. ^{[1
]}

机构：

[1] Univ Melbourne, ARC Ctr Excellence Particle Phys Terascale, Sch Phys, Melbourne, Vic 3010, Australia

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2013年 / 10期

基金：

澳大利亚研究理事会;

关键词：

Beyond Standard Model; Neutrino Physics; LEPTON-FLAVOR VIOLATION; DARK-MATTER; ELECTRON CONVERSION; MUON; OSCILLATIONS; COUPLINGS; DIAGRAMS; MIXINGS;

D O I：

10.1007/JHEP10(2013)118

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

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)epsilon(ik)epsilon(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 mu -> e gamma, mu -> eee, and mu 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.

引用

页数：51

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