Neutralino Dark Matter and Higgs mediated Lepton Flavor Violation in the Minimal Supersymmetric Standard Model

Abstract

We consider the minimal supersymmetric standard model within a scenario of large $\tan \beta$ and heavy squarks and gluinos, with masses of the heavy neutral Higgs bosons below the TeV scale. We allow for the presence of a large, model independent, source of lepton flavor violation (LFV) in the slepton mass matrix in the $\tau -\mu$ sector by the mass insertion approximation. We constrain the parameter space using the $\tau$ LFV decays together with the $B$-mesons physics observables, the anomalous magnetic moment of the muon and the dark matter relic density. We further impose the exclusion limit on spin-independent neutralino-nucleon scattering from CDMS and the recent CDF limit from direct search of the heavy neutral Higgs at the TEVATRON. We re-examine the prospects for the detection of Higgs mediated LFV at LHC, at a photon collider and in LFV decays of the $\tau$ such as $\tau \to \mu \eta$, $\tau \to \mu \gamma$. We find rates probably too small to be observed at future experiments if models have to accommodate for the relic density measured by WMAP and explain the $(g-2{)}_{\mu }$ anomaly: better prospects are found if these two constraints are applied only as upper bounds. The spin-independent neutralino-nucleon cross section in the studied constrained parameter space is just below the present CDMS limit and the running XENON100 experiment will cover the region of the parameter space where the lightest neutralino has large gaugino-higgsino mixing.

9 pages, two-column format, six figures: changes added to match the published version

References in corpus (17)

• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Searches for Lepton Flavor Violation in the Decays tau -> e gamma and tau -> mu gamma
• The Well-Tempered Neutralino
• Improved predictions for g-2 of the muon and α_{\rm QED}(M_Z^2)
• Hints of large tan(beta) in flavour physics
• Likelihood Functions for Supersymmetric Observables in Frequentist Analyses of the CMSSM and NUHM1
• Flavour physics at large tan(beta) with a Bino-like LSP
• Lepton flavour violating semileptonic tau decays in constrained MSSM-seesaw scenarios
• Search for Higgs bosons predicted in two-Higgs-doublet models via decays to tau lepton pairs in 1.96 TeV proton-antiproton collisions
• Lepton flavor violation in $\tau$ decays
• Lepton Flavour Violating Heavy Higgs Decays Within the nuMSSM and Their Detection at the LHC
• Challenges for MSSM Higgs searches at Hadron Colliders
• Neutrino sector impacts SUSY dark matter
• Sensitivity to the Higgs Sector of SUSY-Seesaw Models in the Lepton Flavour Violating tau-->mu f0(980) decay
• The Interplay Between Collider Searches For Supersymmetric Higgs Bosons and Direct Dark Matter Experiments
• Implications of Direct Dark Matter Constraints for Minimal Supersymmetric Standard Model Higgs Boson Searches at the Tevatron
• SUSY dark matter and lepton flavor violation

Cited by in corpus (6)

• Lepton-flavor violating decays of neutral Higgs to muon and tauon in supersymmetric economical 3-3-1 model
• Impact of internal bremsstrahlung on the detection of gamma-rays from neutralinos
• Implications of Lorentz violation on Higgs-mediated lepton flavor violation
• Lepton Flavor Violating $\tau$ Decays in Two Higgs Doublet Model III
• Suppression of Lepton Flavour Violation from Quantum Corrections above $M_{GUT}$
• B_s --> mu+mu- in Supersymmetric Grand Unified Theories