Probing minimal supergravity in the type-I seesaw mechanism with lepton flavour violation at the CERN LHC

Abstract

The most general supersymmetric seesaw mechanism has too many parameters to be predictive and thus can not be excluded by any measurements of lepton flavour violating (LFV) processes. We focus on the simplest version of the type-I seesaw mechanism assuming minimal supergravity boundary conditions. We compute branching ratios for the LFV scalar tau decays, ${\tilde{\tau }}_2\to (e,\mu )+{\chi }_1^0$, as well as loop-induced LFV decays at low energy, such as $l_i\to l_j+\gamma$ and $l_i\to 3l_j$, exploring their sensitivity to the unknown seesaw parameters. We find some simple, extreme scenarios for the unknown right-handed parameters, where ratios of LFV branching ratios correlate with neutrino oscillation parameters. If the overall mass scale of the left neutrinos and the value of the reactor angle were known, the study of LFV allows, in principle, to extract information about the so far unknown right-handed neutrino parameters.

29 pages, 27 figures; added explanatory comments, corrected typos, final version for publication

References in corpus (45)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• Evidence for oscillation of atmospheric neutrinos
• The Cosmological Parameters 2006
• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• Direct Evidence for Neutrino Flavor Transformation from Neutral-Current Interactions in the Sudbury Neutrino Observatory
• First Results from KamLAND: Evidence for Reactor Anti-Neutrino Disappearance
• Tri-Bimaximal Mixing and the Neutrino Oscillation Data
• Oscillating neutrinos and mu --> e, gamma
• Double Beta Decay, Majorana Neutrinos, and Neutrino Mass
• SPheno, a program for calculating supersymmetric spectra, SUSY particle decays and SUSY particle production at e+ e- colliders
• Status of global fits to neutrino oscillations
• Lepton-Flavor Violation via Right-Handed Neutrino Yukawa Couplings in Supersymmetric Standard Model
• The Snowmass Points and Slopes: Benchmarks for SUSY Searches
• Running Neutrino Mass Parameters in See-Saw Scenarios
• Lepton-Flavor Violation in the Supersymmetric Standard Model with Seesaw-Induced Neutrino Masses
• Solar and Atmospheric Neutrino Oscillations and Lepton Flavor Violation in Supersymmetric Models with Right-handed Neutrinos
• Neutrino Masses and Mixings from Supersymmetry with Bilinear R--Parity Violation: A Theory for Solar and Atmospheric Neutrino Oscillations
• CP Violation and Neutrino Oscillations
• Supersymmetry Parameter Analysis: SPA Convention and Project
• Enhanced lepton flavour violation in the supersymmetric inverse seesaw model
• Models of Neutrino Masses and Mixings
• A New Parametrization of the Seesaw Mechanism and Applications in Supersymmetric Models
• Testing Supersymmetry with Lepton Flavor Violating tau and mu decays
• Solar Neutrino Masses and Mixing from Bilinear R-Parity Broken Supersymmetry: Analytical versus Numerical Results
• Prospects for the Zee-Babu Model at the LHC and low energy experiments
• Enhanced mu-e conversion in nuclei in the inverse seesaw model
• New Low-energy Leptoquark Interactions
• The Reconstruction of Supersymmetric Theories at High Energy Scales
• $\mu -e$ conversion in nuclei within the CMSSM seesaw: universality versus non-universality
• Leptoquarks: Neutrino masses and accelerator phenomenology
• Impact of ${\theta }_{13}$ on Lepton Flavour Violating processes within SUSY Seesaw
• Experimental tests for the Babu-Zee two-loop model of Majorana neutrino masses
• Neutrino physics overview
• Lepton-Flavor Violation in the Left-handed Slepton Production at Future Lepton Colliders
• Probing the Majorana mass scale of right-handed neutrinos in mSUGRA
• Lepton Flavor Violation at the LHC
• How can we test seesaw experimentally?
• Test of lepton flavour violation at LHC
• Supergraph Techniques and Two-Loop Beta-Functions for Renormalizable and Non-Renormalizable Operators
• Probing neutrino properties with charged scalar lepton decays
• Leptonic Charged Higgs Decays in the Zee Model
• Determining Sneutrino Masses and Physical Implications
• Slepton Oscillation at Large Hadron Collider
• Determining Heavy Mass Parameters in Supersymmetric SO(10) Models

Cited by in corpus (40)

• 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
• The low-scale approach to neutrino masses
• Benchmark Models, Planes, Lines and Points for Future SUSY Searches at the LHC
• Sterile neutrinos in lepton number and lepton flavor violating decays
• Neutrino masses and mixing: a flavour symmetry roadmap
• GUT Physics in the era of the LHC
• Supersymmetric seesaw type II: CERN LHC and lepton flavour violating phenomenology
• μto e in R-symmetric Supersymmetry
• Phenomenology of the minimal supersymmetric $U(1{)}_{B-L}\times U(1{)}_R$ extension of the standard model
• Measuring Lepton Flavour Violation at LHC with Long-Lived Slepton in the Coannihilation Region
• Flavour violation at the LHC: type-I versus type-II seesaw in minimal supergravity
• Calculable inverse-seesaw neutrino masses in supersymmetry
• SUSEFLAV: program for supersymmetric mass spectra with seesaw mechanism and rare lepton flavor violating decays
• Supersymmetric type-III seesaw: lepton flavour violating decays and dark matter
• Lepton Flavor Violation in Models with $A_4$ and $S_4$ Flavor Symmetries
• Dark matter and LHC phenomenology in a left-right supersymmetric model
• On sterile neutrino mixing with ν_τ
• LHC and lepton flavour violation phenomenology of a left-right extension of the MSSM
• Probing the supersymmetric type III seesaw: LFV at low-energies and at the LHC
• Dark matter in minimal supergravity with type-II seesaw
• Heavy Right-Handed Neutrinos and Dark Matter in the $\nu$CMSSM
• Lepton flavour violation: physics potential of a Linear Collider
• Decoupling of heavy sneutrinos in low-scale seesaw models
• Lepton flavor violation in the supersymmetric seesaw model after the LHC 8 TeV run
• A Sneutrino NLSP in the $\nu$CMSSM
• Matter Parity Violating Dark Matter Decay in Minimal SO(10), Unification, Vacuum Stability and Verifiable Proton Decay
• Supersymmetric type-III seesaw: lepton flavour violation and LHC phenomenology
• Investigating the hybrid textures of neutrino mass matrix for near maximal atmospheric neutrino mixing
• Supersymmetric mass spectra and the seesaw scale
• Enhanced Tau Lepton Signatures at LHC in Constrained Supersymmetric Seesaw
• Probing neutrino masses and tri-bimaximality with lepton flavor violation searches
• Lepton Flavor Violation in Complex SUSY Seesaw Models with Nearly Tribimaximal Mixing
• Lepton flavor violation beyond the MSSM
• Lepton flavor violation in SUSY left-right symmetric theories
• LHC phenomenology of supersymmetric models beyond the MSSM
• Neutrinos as cosmic messengers
• Lepton flavour violating stau decays versus seesaw parameters: correlations and expected number of events for both seesaw type-I and II