6533b855fe1ef96bd12b0843
RESEARCH PRODUCT
Solar Neutrino Masses and Mixing from Bilinear R-Parity Broken Supersymmetry: Analytical versus Numerical Results
Jorge C. RomãoJorge C. RomãoWerner PorodMartin HirschJosé W. F. ValleMarco Aurelio Diazsubject
PhysicsNuclear and High Energy PhysicsParticle physics010308 nuclear & particles physicsSolar neutrinoHigh Energy Physics::PhenomenologyFOS: Physical sciencesBilinear interpolationFeynman graphSupersymmetry01 natural sciencesFormalism (philosophy of mathematics)High Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)R-parity0103 physical sciencesBibliographyReactor neutrino010306 general physicsdescription
We give an analytical calculation of solar neutrino masses and mixing at one-loop order within bilinear R-parity breaking supersymmetry, and compare our results to the exact numerical calculation. Our method is based on a systematic perturbative expansion of R-parity violating vertices to leading order. We find in general quite good agreement between approximate and full numerical calculation, but the approximate expressions are much simpler to implement. Our formalism works especially well for the case of the large mixing angle MSW solution (LMA-MSW), now strongly favoured by the recent KamLAND reactor neutrino data.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2003-02-04 |