Supersymmetric type-III seesaw: lepton flavour violating decays and dark matter
arXiv:1010.6000 · doi:10.1103/PhysRevD.83.013003
Abstract
We study a supersymmetric version of the seesaw mechanism type-III. The model consists of the MSSM particle content plus three copies of 24 superfields. The fermionic part of the SU(2) triplet contained in the 24 is responsible for the type-III seesaw, which is used to explain the observed neutrino masses and mixings. Complete copies of 24 are introduced to maintain gauge coupling unification. These additional states change the beta functions of the gauge couplings above the seesaw scale. Using mSUGRA boundary conditions we calculate the resulting supersymmetric mass spectra at the electro-weak scale using full 2-loop renormalization group equations. We show that the resulting spectrum can be quite different compared to the usual mSUGRA spectrum. We discuss how this might be used to obtain information on the seesaw scale from mass measurements. Constraints on the model space due to limits on lepton flavour violating decays are discussed. The main constraints come from the bounds on the decay mu to e and gamma but there are also regions where the decay tau to mu and gamma gives stronger constraints. We also calculate the regions allowed by the dark matter constraint. For the sake of completeness, we compare our results with those for the supersymmetric seesaw type-II and, to some extent, with type-I.
32 pages, 16 eps figures. One ref. added; small changes in text
References in corpus (15)
- micrOMEGAs2.0: a program to calculate the relic density of dark matter in a generic model
- conversion in nuclei within the CMSSM seesaw: universality versus non-universality
- Impact of on Lepton Flavour Violating processes within SUSY Seesaw
- Probing minimal supergravity in the type-I seesaw mechanism with lepton flavour violation at the CERN LHC
- How can we test seesaw experimentally?
- Supersymmetric seesaw type II: CERN LHC and lepton flavour violating phenomenology
- SUSY-GUTs, SUSY-Seesaw and the Neutralino Dark Matter
- Flavour violation at the LHC: type-I versus type-II seesaw in minimal supergravity
- Phenomenology of SUSY SU(5) with type I+III seesaw
- Measuring Smuon-Selectron Mass Splitting at the LHC and Patterns of Supersymmetry Breaking
- Interplay of LFV and slepton mass splittings at the LHC as a probe of the SUSY seesaw
- Minimal Supersymmetric SU(5) and Gauge Coupling Unification at Three Loops
- Dark matter in minimal supergravity with type-II seesaw
- Determining Heavy Mass Parameters in Supersymmetric SO(10) Models
- Effects of Large Threshold Corrections in Supersymmetric Type-I Seesaw Model
Cited by in corpus (27)
- SPheno 3.1: extensions including flavour, CP-phases and models beyond the MSSM
- SARAH 3.2: Dirac Gauginos, UFO output, and more
- Exploring new models in all detail with SARAH
- A Flavor Kit for BSM models
- GUT Physics in the era of the LHC
- Hefty MSSM-like light Higgs in extended gauge models
- Phenomenology of the minimal supersymmetric extension of the standard model
- SUSEFLAV: program for supersymmetric mass spectra with seesaw mechanism and rare lepton flavor violating decays
- Conservative upper limits on WIMP annihilation cross section from Fermi-LAT γ-rays
- Soft masses in SUSY SO(10) GUTs with low intermediate scales
- Dark matter and LHC phenomenology in a left-right supersymmetric model
- Proposal for generalised Supersymmetry Les Houches Accord for see-saw models and PDG numbering scheme
- On sterile neutrino mixing with ν_τ
- LHC and lepton flavour violation phenomenology of a left-right extension of the MSSM
- Implications of gauge kinetic mixing on Z' and slepton production at the LHC
- Probing the supersymmetric type III seesaw: LFV at low-energies and at the LHC
- Multiple Scales in Pati-Salam Unification Models
- Lepton flavour violation in the MSSM: exact diagonalization vs mass expansion
- Neutrino mass from higher than d=5 effective operators in SUSY, and its test at the LHC
- Decoupling of heavy sneutrinos in low-scale seesaw models
- Supersymmetric mass spectra and the seesaw scale
- Supersymmetric type-III seesaw: lepton flavour violation and LHC phenomenology
- Supersymmetric SO(10) GUTs with sliding scales
- Lepton flavor violation beyond the MSSM
- Revisiting lepton flavor violation in supersymmetric type II seesaw
- Lepton Flavor Violation of Z Gauge Boson Decays in Supersymmetric Type-III Seesaw Model
- Phenomenology of SUSY with intermediate scale physics