Adiabatic compression and indirect detection of supersymmetric dark matter

Abstract

Recent developments in the modelling of the dark matter distribution in our Galaxy point out the necessity to consider some physical processes to satisfy observational data. In particular, models with adiabatic compression, which include the effect of the baryonic gas in the halo, increase significantly the dark matter density in the central region of the Milky Way. On the other hand, the non-universality in scalar and gaugino sectors of supergravity models can also increase significantly the neutralino annihilation cross section. We show that the combination of both effects gives rise to a gamma-ray flux arising from the Galactic Center largely reachable by future experiments like GLAST. We also analyse in this framework the EGRET excess data above 1 GeV, as well as the recent data from CANGAROO and HESS. The analysis has been carried out imposing the most recent experimental constraints, such as the lower bound on the Higgs mass, the \bsg branching ratio, and the muon $g-2$. In addition, the recently improved upper bound on $B(B_s\to {\mu }^{+}{\mu }^{-})$ has also been taken into account. The astrophysical (WMAP) bounds on the dark matter density have also been imposed on the theoretical computation of the relic neutralino density through thermal production.

32 pages, 11 figures, final version to appear in JCAP

References in corpus (74)

• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
• The Structure of Cold Dark Matter Halos
• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Preliminary Maps and Basic Results
• High-Energy-Physics Event Generation with PYTHIA 6.1
• Cold collapse and the core catastrophe
• Response of dark matter halos to condensation of baryons: cosmological simulations and improved adiabatic contraction model
• DarkSUSY: Computing Supersymmetric Dark Matter Properties Numerically
• Measurement of the Negative Muon Anomalous Magnetic Moment to 0.7 ppm
• SuSpect: a Fortran Code for the Supersymmetric and Higgs Particle Spectrum in the MSSM
• micrOMEGAs: A program for calculating the relic density in the MSSM
• Observability of Gamma Rays from Dark Matter Neutralino Annihilations in the Milky Way Halo
• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Parameter Estimation Methodology
• Diffuse Galactic continuum gamma rays. A model compatible with EGRET data and cosmic-ray measurements
• micrOMEGAs: Version 1.3
• Branching Fraction and Photon Energy Spectrum b -> s gamma
• Very high energy gamma rays from the direction of Sagittarius A*
• Cosmological dark matter annihilations into gamma-rays - a closer look
• Updated Estimate of the Muon Magnetic Moment Using Revised Results from e+e- Annihilation
• Dark Matter Detection in the Light of Recent Experimental Results
• Direct, Indirect and Collider Detection of Neutralino Dark Matter In SUSY Models with Non-universal Higgs Masses
• Convergence and scatter of cluster density profiles
• Full One-loop Calculation of Neutralino Annihilation into Two Photons
• Prospects for Indirect Detection of Neutralino Dark Matter
• Clumpy Neutralino Dark Matter
• Time-Dependent Models for Dark Matter at the Galactic Center
• Detection of Sub-TeV Gamma-Rays from the Galactic Center Direction by CANGAROO-II
• Predictions for g-2 of the muon and alpha_QED(M_Z^2)
• The hadronic contributions to the anomalous magnetic moment of the muon
• Neutralino Annihilation into a Photon and a Z boson
• Evolution of the Dark Matter Distribution at the Galactic Center
• Neutralino Annihilation into Two Photons
• Neutralino annihilation into gamma-rays in the Milky Way and in external galaxies
• Relic Neutralino Densities and Detection Rates with Nonuniversal Gaugino Masses
• The Galactic Center as a Dark Matter Gamma-Ray Source
• High Energy Gamma--Radiation from the Galactic Center due to Neutralino Annihilation
• Astrophysical inputs on the SUSY dark matter annihilation detectability
• WMAP constraints on SUGRA models with non-universal gaugino masses and prospects for direct detection
• Indirect Detection of Kaluza-Klein Dark Matter
• Indirect signals from light neutralinos in supersymmetric models without gaugino mass unification
• Search for Bs->mu+mu- and Bd->mu+mu- Decays in ppbar Collisions at sqrt(s)=1.96 TeV
• Neutralino Dark Matter beyond CMSSM Universality
• A Search for the Flavor-Changing Neutral Current Decay B0_s -> mu^+mu^- in pp(bar) Collisions at \sqrt{s} = 1.96 TeV with the D0 Detector
• Supersymmetric Dark Matter and the Extragalactic Gamma Ray Background
• Diffractive Interaction and Scaling Violation in pp->pi^0 Interaction and GeV Excess in Galactic Diffuse Gamma-Ray Spectrum of EGRET
• Indirect, Direct and Collider Detection of Neutralino Dark Matter
• Determination of Cosmological Parameters
• Direct and Indirect Detection of Neutralino Dark Matter In Selected Supersymmetry Breaking Scenarios
• The Validity of the Adiabatic Contraction Approximation for Dark Matter Halos
• Dark matter density profiles from the Jeans equation
• Direct versus indirect detection in mSUGRA with self-consistent halo models
• Searching for TeV dark matter by atmospheric Cerenkov techniques
• Possible Indications of a Clumpy Dark Matter Halo
• Neutrino Indirect Detection of Neutralino Dark Matter in the CMSSM
• Have Atmospheric Cerenkov Telescopes Observed Dark Matter?
• Broad-band diffuse gamma ray emission of the Galactic Disk
• Neutrinos from Dark Matter annihilations at the Galactic Centre
• Direct detection of neutralino dark matter in supergravity
• Evidence for Dark Matter Annihilation from Galactic Gamma Rays?
• Neutralino dark matter scattering and $B_s\to {\mu }^{+}{\mu }^{-}$ in SUSY models
• Belle B Physics Results
• Excess of EGRET Galactic Gamma Ray Data interpreted as Dark Matter Annihilation
• Excess GeV radiation and cosmic ray origin
• Phenomenological Aspects of Heterotic Orbifold Models at One Loop
• A comparison between direct and indirect dark matter search
• Indirect Evidence for the Supersymmetric Nature of Dark Matter from the Combined Data on Galactic Positrons, Antiprotons and Gamma Rays
• Gamma-ray detection from neutralino annihilation in non--universal SUGRA scenarios
• Searching for dark matter
• Improving the Angular Resolution of EGRET and New Limits on Supersymmetric Dark Matter Near the Galactic Center
• micrOMEGAs: recent developments
• The rotation curve of spiral galaxies and its cosmological implications
• Annihilation Radiation of Dark Matter in Heterotic Orbifold Models
• Dark Matter Halos around Galaxies
• Halo Geometry and Dark Matter Annihilation Signal
• Indirect Evidence for WIMP Annihilation from Diffuse Galactic Gamma Rays

Cited by in corpus (38)

• Dark Matter Annihilation in The Galactic Center As Seen by the Fermi Gamma Ray Space Telescope
• The Inert Doublet Model: an Archetype for Dark Matter
• Dark matter substructure and gamma-ray annihilation in the Milky Way halo
• Baryonic Pinching of Galactic Dark Matter Halos
• SUSY Phenomenology of KKLT Flux Compactifications
• Fitting the Gamma-Ray Spectrum from Dark Matter with DMFIT: GLAST and the Galactic Center Region
• TeV gamma-rays and the largest masses and annihilation cross sections of neutralino dark matter
• Flavour physics at large tan(beta) with a Bino-like LSP
• Metastable Vacua in Flux Compactifications and Their Phenomenology
• Challenges in Detecting Gamma-Rays From Dark Matter Annihilations in the Galactic Center
• Constraints on WIMP Annihilation for Contracted Dark Matter in the Inner Galaxy with the Fermi-LAT
• Inelastic Dark Matter As An Efficient Fuel For Compact Stars
• Robust Gamma Ray Signature of WIMP Dark Matter
• Determining the WIMP mass using the complementarity between direct and indirect searches and the ILC
• Dark matter dynamics in Galactic center
• New constraints on the primordial black hole number density from Galactic gamma-ray astronomy
• On prospects for dark matter indirect detection in the Constrained MSSM
• Exact models with non-minimal interaction between dark matter and (either phantom or quintessence) dark energy
• Angular Signatures of Dark Matter in the Diffuse Gamma Ray Background
• Dark Matter annihilation in Draco: new considerations of the expected gamma flux
• Search for Gamma-rays from Dark Matter annihilations around Intermediate Mass Black Holes with the H.E.S.S. experiment
• Higgs funnel region of SUSY dark matter for small $\tan \beta$ and renormalization group effects on pseudoscalar Higgs boson with scalar mass non-universality
• Impact of astrophysical processes on the gamma-ray background from dark matter annihilations
• Dark matter detection in the BMSSM
• Looking for a heavy wino LSP in collider and dark matter experiments
• Dark matter and Colliders searches in the MSSM
• New gamma ray signal from gravitationally boosted neutralinos at the galactic center
• Neutrino Signals from Gravitino Dark Matter with Broken R-Parity
• Constraining Dark Matter Properties with Gamma-Rays from the Galactic Center with Fermi-LAT
• Gamma-Rays from Dark Matter Mini-Spikes in M31
• Higgsino dark matter in partly supersymmetric models
• Exploring SUSY light Higgs boson scenarios via dark matter experiments
• Dark Matter Prospects in Deflected Mirage Mediation
• A comparison between the detection of gamma rays and positrons from neutralino annihilation
• Mass Limits on Neutralino Dark Matter
• Gamma ray and Neutrino fluxes from a cosmological dark matter simulation
• Indirect Dark Matter Searches and Models
• Neutralino-neutralino annihilation to gammaZ in MSSM