Testable two-loop radiative neutrino mass model based on an $LLQd^cQd^c$ effective operator
| Autor: | Angel, Paul W., Cai, Yi, Rodd, Nicholas L., Schmidt, Michael A., Volkas, Raymond R. |
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| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | JHEP10(2013)118 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1007/JHEP10(2013)118 |
| Popis: | 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 ${\mu} \to e{\gamma}$, $\mu \to eee$, and $\mu N \to eN$ 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. Comment: 42 pages, 11 figures, typo in Eq. (4.9) as well as wrong chirality structures in Secs. 4.5 and 5.2 corrected, final results unchanged |
| Databáze: | arXiv |
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