Renormalization of a two-loop neutrino mass model

Journal Article · Wed Jan 01 04:00:00 EST 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4883422· OSTI ID:22306236

Babu, K. S. ^[1]; Julio, J. ^[2]

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1. Department of Physics, Oklahoma State University, Stillwater, Oklahoma 74078 (United States)
2. Fisika LIPI, Kompleks Puspiptek Serpong, Tangerang 15310, Indonesia and Jožef Stefan Institute, Jamova Cesta 39, 1001 Ljubljana (Slovenia)

We analyze the renormalization group structure of a radiative neutrino mass model consisting of a singly charged and a doubly charged scalar fields. Small Majorana neutrino masses are generated by the exchange of these scalars via two-loop diagrams. We derive boundedness conditions for the Higgs potential and show how they can be satisfied to energies up to the Planck scale. Combining boundedness and perturbativity constraints with neutrino oscillation phenomenology, new limits on the masses and couplings of the charged scalars are derived. These in turn lead to lower limits on the branching ratios for certain lepton flavor violating (LFV) processes such as μ→eγ, μ→3e and μ – e conversion in nuclei. Improved LFV measurements could test the model, especially in the case of inverted neutrino mass hierarchy where these are more prominent.

• OSTI ID: 22306236
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1604; ISSN 0094-243X; ISSN APCPCS
• Publisher: AIP
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BRANCHING RATIO
FLAVOR MODEL
HIGGS BOSONS
HIGGS MODEL
MASS
NEUTRINO OSCILLATION
NEUTRINOS
NUCLEI
POTENTIALS
RENORMALIZATION
SCALAR FIELDS