Coannihilation Effects in Supergravity and D-Brane Models

Abstract

Coannihilation effects in neutralino relic density calculations are examined for a full range of supersymmetry parameters including large \tanβand large A_0 for stau, chargino, stop and sbottom coannihilation with the neutralino. Supergravity models possessing grand unification with universal soft breaking (mSUGRA), models with nonuniversal soft breaking in the Higgs and third generation sparticles, and D-brane models with nonuniversal gaugino masses were analysed. Unlike low \tanβwhere m_0 is generally small, stau coannihilation corridors with high \tanβare highly sensitive to A_0, and large A_0 allows m_0 to become as large as 1TeV. Nonuniversal soft breaking models at high \tanβalso allow the opening of a new annihilation channel through the s-channel Z pole with acceptable relic density, allowing a new wide band in the m_0-m_{1/2} plane with m_{1/2} >~ 400 GeV and $m_0$ rising to 1 TeV. The D-brane models considered possess stau coannihilations regions similar to mSUGRA, as well as small regions of chargino coannihilation. Neutralino-proton cross sections are analysed for all models and it is found that future detectors for halo wimps will be able to scan essentially the full parameter space with m_{1/2} < 1 TeV except for a region with μ< 0 where accidental cancellations occur when 5 ~<\tanβ~< 30. Analytic explanations of much of the above phenomena are given. The above analyses include current LEP bounds on the Higgs mass, large \tanβNLO correction to the b \to s γdecay, and large \tanβSUSY corrections to the b and τmasses.

25 pages, latex, 13 figures, references added

Cited by in corpus (131)

• DarkSUSY: Computing Supersymmetric Dark Matter Properties Numerically
• WIMP dark matter candidates and searches - current status and future prospects
• micrOMEGAs: Version 1.3
• Supersymmetric Dark Matter in Light of WMAP
• Direct, Indirect and Collider Detection of Neutralino Dark Matter In SUSY Models with Non-universal Higgs Masses
• The MSSM Parameter Space with Non-Universal Higgs Masses
• WMAP Constraints, SUSY Dark Matter and Implications for the Direct Detection of SUSY
• Supergravity with a Gravitino LSP
• Exploration of the MSSM with Non-Universal Higgs Masses
• Dark Matter through the Higgs portal
• Neutralino relic density in minimal supergravity with co-annihilations
• Update on the Direct Detection of Supersymmetric Dark Matter
• Calculations of Neutralino-Stop Coannihilation in the CMSSM
• Supersymmetric Dark Matter and Yukawa Unification
• Physics at the e+ e- Linear Collider
• Electric Dipole Moments in the MSSM at Large tan(beta)
• The Hunt for New Physics at the Large Hadron Collider
• Neutralino Cold Dark Matter in a One Parameter Extension of the Minimal Supergravity Model
• Supersymmetric Dark Matter - How Light Can the LSP Be?
• Accurate relic densities with neutralino, chargino and sfermion coannihilations in mSUGRA
• Constraining Supersymmetry
• Multi-Dimensional mSUGRA Likelihood Maps
• TeV gamma-rays and the largest masses and annihilation cross sections of neutralino dark matter
• Exact Cross Sections for the Neutralino-Slepton Coannihilation
• Yukawa Quasi-Unification
• Post-LHC7 fine-tuning in the mSUGRA/CMSSM model with a 125 GeV Higgs boson
• Detection of B_s->mu mu at the Tevatron Run II and Constraints on the SUSY Parameter Space
• Neutralino dark matter in mSUGRA/CMSSM with a 125 GeV light Higgs scalar
• Direct Detection of Dark Matter in Supersymmetric Models
• Exploring the BWCA (Bino-Wino Co-Annihilation) Scenario for Neutralino Dark Matter
• A Profile Likelihood Analysis of the Constrained MSSM with Genetic Algorithms
• The Extent of the Stop Coannihilation Strip
• Neutralino Dark Matter in mSUGRA: reopening the light Higgs pole window
• B -> X_s gamma in Supersymmetry with Explicit CP Violation
• Updated Constraints on the Minimal Supergravity Model
• Phenomenological Constraints on Patterns of Supersymmetry Breaking
• Detailed analysis of the decay spectrum of a super-heavy X particle
• b-tau Unification with Gaugino and Sfermion Mass non Universality
• Mixed Wino Dark Matter: Consequences for Direct, Indirect and Collider Detection
• Precision gluino mass at the LHC in SUSY models with decoupled scalars
• Direct Detection of Dark Matter in the MSSM with Non-Universal Higgs Masses
• Beyond the CMSSM without an Accelerator: Proton Decay and Direct Dark Matter Detection
• A 119-125 GeV Higgs from a string derived slice of the CMSSM
• Light Higgses at the Tevatron and at the LHC and Observable Dark Matter in SUGRA and D Branes
• Resurrecting No-Scale Supergravity Phenomenology
• The Dark Side of mSUGRA
• Indirect, Direct and Collider Detection of Neutralino Dark Matter
• Target dark matter detection rates in models with a well-tempered neutralino
• Scenarios for Gluino Coannihilation
• Direct versus indirect detection in mSUGRA with self-consistent halo models
• Smoothly evolving Supercritical-String Dark Energy relaxes Supersymmetric-Dark-Matter Constraints
• The Super-GUT CMSSM Revisited
• Collider signals and neutralino dark matter detection in relic-density-consistent models without universality
• On B_s -> mu+ mu- and Cold Dark Matter Scattering in the MSSM with Non-Universal Higgs Masses
• Phenomenology of GUT-less Supersymmetry Breaking
• Probing Compressed Sleptons at the LHC using Vector Boson Fusion Processes
• The Forward-Backward Asymmetry of B to (pi,K) l^+ l^-: Supersymmetry at Work
• Relic density of neutralino dark matter in the MSSM with CP violation
• Using b-tagging to enhance the SUSY reach of the CERN Large Hadron Collider
• Neutralinos and Sleptons at the LHC in Light of Muon $(g-2{)}_{\mu }$
• What if Supersymmetry Breaking Unifies beyond the GUT Scale?
• Anomalous U(1) symmetry and lepton flavor violation
• Sensitivity of Supersymmetric Dark Matter to the b Quark Mass
• What if supersymmetry breaking appears below the GUT scale?
• Stop Coannihilation in the CMSSM and SubGUT Models
• Collider Interplay for Supersymmetry, Higgs and Dark Matter
• SUSY Phases, the Electron Electric Dipole Moment and the Muon Magnetic Moment
• Non-zero trilinear parameter in the mSUGRA model - dark matter and collider signals at Tevatron and LHC
• Heavy-flavour tagging and the supersymmetry reach of the CERN Large Hadron Collider
• Lepton Flavor Violation and the Origin of the Seesaw Mechanism
• Neutralino-Nucleon Cross Section and Charge and Colour Breaking Constraints
• Constraints from Accelerator Experiments on the Elastic Scattering of CMSSM Dark Matter
• On the Higgs Mass in the CMSSM
• Fine-tuning favors mixed axion/axino cold dark matter over neutralinos in the minimal supergravity model
• Neutralino versus axion/axino cold dark matter in the 19 parameter SUGRA model
• Superstring-Inspired Particle Cosmology: Inflation, Neutrino Masses, Leptogenesis, Dark Matter & the SUSY Scale
• Constrained Supersymmetric Flipped SU(5) GUT Phenomenology
• Low mass neutralino dark matter in mSUGRA and more general models in the light of LHC data
• Squark-, Slepton- and Neutralino-Chargino coannihilation effects in the low-energy effective MSSM
• Higgs funnel region of SUSY dark matter for small $\tan \beta$ and renormalization group effects on pseudoscalar Higgs boson with scalar mass non-universality
• Update on the Direct Detection of Dark Matter in MSSM Models with Non-Universal Higgs Masses
• Lepton Flavor Violation and Neutrino Mixings in a 3X2 Seesaw Model
• Finite Theories and the SUSY Flavor Problem
• Relating the CMSSM and SUGRA models with GUT scale and Super-GUT scale Supersymmetry Breaking
• Mixed Higgsino Dark Matter from a Reduced SU(3) Gaugino Mass: Consequences for Dark Matter and Collider Searches
• Neutrino sector impacts SUSY dark matter
• Constraints on Supersymmetric Dark Matter for Heavy Scalar Superpartners
• Supersymmetric Relations Among Electromagnetic Dipole Operators
• Thermal leptogenesis and the gravitino problem in the Asaka-Yanagida axion/axino dark matter scenario
• Likelihood Analysis of the Sub-GUT MSSM in Light of LHC 13-TeV Data
• Collider, direct and indirect detection of supersymmetric dark matter
• Mixed Higgsino Dark Matter from a Large SU(2) Gaugino Mass
• The Search for Electroweakinos
• Top Squark Searches Using Dilepton Invariant Mass Distributions and Bino-Higgsino Dark Matter at the LHC
• Effects of Velocity-Dependent Dark Matter Annihilation on the Energy Spectrum of the Extragalactic Gamma-ray Background
• The Stau Neutralino Co-annihilation Region at an International Linear Collider
• Light Higgsino Decays as a Probe of the NMSSM
• The Fine-Tuning Price of Neutralino Dark Matter in Models with Non-Universal Higgs Masses
• No-Scale SU(5) Super-GUTs
• Likelihood Analysis of Supersymmetric SU(5) GUTs
• Galactic-Centre Gamma Rays in CMSSM Dark Matter Scenarios
• CP Asymmetries of $B\to \varphi K$ and $B\to {\eta }^{(\prime )}K$ Decays Using a Global Fit in QCD Factorization
• The CMSSM Survives Planck, the LHC, LUX-ZEPLIN, Fermi-LAT, H.E.S.S. and IceCube
• Probing SUSY beyond the reach of LEP2 at the Fermilab Tevatron: low |M_3| dark matter models
• Probing the light Higgs pole resonance annihilation of dark matter in the light of XENON100 and CDMS-II observations
• Fermion Mass Hierarchy and Electric Dipole Moments
• Higgsino Dark Matter in Pure Gravity Mediated Supersymmetry
• SUSY dark matter and lepton flavor violation
• Partial wave treatment of Supersymmetric Dark Matter in the presence of CP - violation
• Exploring SUSY light Higgs boson scenarios via dark matter experiments
• Slepton and Neutralino/Chargino Coannihilations in MSSM
• Determination of Non-Universal Supergravity Models at the Large Hadron Collider
• Lepton Flavours at the Early LHC Experiments as the Footprints of the Dark Matter Producing Mechanisms
• Diagnosis of Supersymmetry Breaking Mediation Schemes by Mass Reconstruction at the LHC
• Extragalactic and galactic gamma-rays and neutrinos from annihilating dark matter
• Probing Squeezed Bino-Slepton Spectra with the Large Hadron Collider
• SUSY darkmatter at the LHC - 7 TeV
• WMAP Data and Recent Developments in Supersymmetric Dark Matter
• Effects of Neutrino Inverse Seesaw Mechanism on the Sparticle Spectrum in CMSSM and NUHM2
• Heavy Higgs Resonances for the Neutralino Relic Density in the Higgs Decoupling Limit of the CP--noninvariant Minimal Supersymmetric Standard Model
• Refining the predictions of supersymmetric CP-violating models: A top-down approach
• Tracking down the elusive charginos / neutralinos through $\tau$ leptons at the Large Hadron Collider
• The hMSSM with a Light Gaugino/Higgsino Sector: Implications for Collider and Astroparticle Physics
• Distinguishing among dark matter annihilation channels with neutrino telescopes
• Neutralino-stop coannihilation in the CMSSM
• Non-universal SUGRA at LHC: Prospects and Discovery Potential
• Correlation between direct dark matter detection and Br(B_s -> mu mu) with a large phase of B_s - anti-B_s mixing
• Candidates for non-baryonic dark matter
• Exploring neutralino dark matter resonance annihilation via bA,bH -> b mu^+ mu^- at the LHC
• Dark Matter in SUSY Models
• The interplay between the charged Higgs and squark-gluino events at the LHC