Mixed sneutrino dark matter in light of the 2011 XENON and LHC results

Abstract

In the context of supersymmetric models in which small Dirac neutrino masses are generated by supersymmetry breaking, a mainly right-handed (RH) mixed sneutrino can be an excellent cold dark matter (DM) candidate. We perform a global analysis of the Minimal Supersymmetric Standard Model (MSSM)+RH neutrino parameter space by means of Markov Chain Monte Carlo scans. We include all relevant constraints from collider and dark matter searches, paying particular attention to nuclear and astrophysical uncertainties. Two distinct cases can satisfy all constraints: heavy sneutrino DM with mass of order 100 GeV, as well as light sneutrino DM with mass of about 3-6 GeV. We discuss the implications for direct and indirect dark matter searches, as well as for SUSY and Higgs searches at the LHC for both, the light and the heavy sneutrino dark matter case. The light sneutrino case is excluded by the 125-126 GeV Higgs signal.

38 pages, 13 figures; v3: appendix added, minor corrections, note added on the 2012 XENON100 results; matches version accepted by JCAP

References in corpus (34)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Three Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Polarization Analysis
• Dark Matter Results from 225 Live Days of XENON100 Data
• Bayes in the sky: Bayesian inference and model selection in cosmology
• First results from DAMA/LIBRA and the combined results with DAMA/NaI
• Results from a Search for Light-Mass Dark Matter with a P-type Point Contact Germanium Detector
• Phenomenology with Massive Neutrinos
• Estimate of BR(B -> X_s gamma) at O(alpha_s^2)
• The RAVE Survey: Constraining the Local Galactic Escape Speed
• Results from a Low-Energy Analysis of the CDMS II Germanium Data
• Indirect search for dark matter with micrOMEGAs2.4
• On the local dark matter density
• The Muon Magnetic Moment and Supersymmetry
• Strong constraints on the rare decays Bs -> mu+ mu- and B0 -> mu+ mu-
• The Astrophysical Uncertainties Of Dark Matter Direct Detection Experiments
• PAMELA Positron Excess as a Signal from the Hidden Sector
• Sneutrino cold dark matter, a new analysis: relic abundance and detection rates
• Right-handed sneutrino as thermal dark matter
• Minimal supergravity sneutrino dark matter and inverse seesaw neutrino masses
• Right-Handed Sneutrino as Cold Dark Matter of the Universe
• Revival of the Thermal Sneutrino Dark Matter
• Constraining the MSSM with universal gaugino masses and implication for searches at the LHC
• Search for annual modulation in low-energy CDMS-II data
• Light mixed sneutrinos as thermal dark matter
• Right-handed sneutrino dark matter in $\mathbf{U}(1{)}^{\prime }$ seesaw models and its signatures at the LHC
• Right-handed Sneutrino Dark Matter in Supersymmetric B-L Model
• Sneutrino Dark Matter and the Observed Anomalies in Cosmic Rays
• On local dark matter density
• Prospects for Indirect Detection of Sneutrino Dark Matter with IceCube
• Theories for the Fermi Scale
• Transport of exotic anti-nuclei: I- Fast formulae for antiproton fluxes
• Sneutrino cold dark matter in extended MSSM models
• Sneutrino dark matter in light of PAMELA

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