Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2008-11-29
JHEP 0904:069,2009
Physics
High Energy Physics
High Energy Physics - Phenomenology
49 pages, 19 figures, LaTex, JHEP style, short remarks added in the text, typos corrected, minor modifications in the abstract
Scientific paper
10.1088/1126-6708/2009/04/069
We examine in detail the neutrino masses and mixing patterns in an extension of the minimal supersymmetric standard model with three gauge-singlet neutrinos and R-parity violation. The Majorana masses for the gauge-singlet neutrinos as well as the usual $\mu$-term for the Higgs superfields are generated at the electroweak scale through the vacuum expectation values of the singlet sneutrinos. The resulting effective mass matrix for the three light neutrinos have contributions from the seesaw mechanism involving the singlet neutrinos as well as due to the mixing with the heavy neutralinos. This model is popularly known in the literature as the "$\mu$ from $\nu$ supersymmetric standard model" ($\mu\nu$SSM). We show that even with flavour diagonal neutrino Yukawa couplings, the global data on three-flavour neutrinos can be well accounted for in this scenario, at the tree level. We also analyze the mixing in the chargino and the Higgs sector and calculate the decays of the lightest supersymmetric particle in this model. The decay branching ratios show certain correlations with the neutrino mixing angles, which can be tested at the LHC. Some other phenomenological implications of such a model have been discussed.
Ghosh Pradipta
Roy Sourov
No associations
LandOfFree
Neutrino masses and mixing, lightest neutralino decays and a solution to the $μ$ problem in supersymmetry does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Neutrino masses and mixing, lightest neutralino decays and a solution to the $μ$ problem in supersymmetry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Neutrino masses and mixing, lightest neutralino decays and a solution to the $μ$ problem in supersymmetry will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-139860