Neutralino Dark Matter in BMSSM Effective Theory

Abstract

We study thermal neutralino dark matter in an effective field theory extension of the MSSM, called "Beyond the MSSM" (BMSSM) in Dine, Seiberg and Thomas (2007). In this class of effective field theories, the field content of the MSSM is unchanged, but the little hierarchy problem is alleviated by allowing small corrections to the Higgs/higgsino part of the Lagrangian. We perform parameter scans and compute the dark matter relic density. The light Higgsino LSP scenario is modified the most; we find new regions of parameter space compared to the standard MSSM. This involves interesting interplay between the WMAP dark matter bounds and the LEP chargino bound. We also find some changes for gaugino LSPs, partly due to annihilation through a Higgs resonance, and partly due to coannihilation with light stops in models that are ruled in by the new effective terms.

37 pages + appendix

References in corpus (31)

• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• FeynHiggs: a program for the calculation of the masses of the neutral CP-even Higgs bosons in the MSSM
• Systematics of Moduli Stabilisation in Calabi-Yau Flux Compactifications
• DarkSUSY: Computing Supersymmetric Dark Matter Properties Numerically
• Towards High-Precision Predictions for the MSSM Higgs Sector
• The Masses of the Neutral CP-even Higgs Bosons in the MSSM: Accurate Analysis at the Two-Loop Level
• Neutralino Relic Density including Coannihilations
• The Higgs Boson Masses and Mixings of the Complex MSSM in the Feynman-Diagrammatic Approach
• A new measurement of the antiproton-to-proton flux ratio up to 100 GeV in the cosmic radiation
• Large-Volume Flux Compactifications: Moduli Spectrum and D3/D7 Soft Supersymmetry Breaking
• Non-thermal Dark Matter and the Moduli Problem in String Frameworks
• Light Higgsino Dark Matter
• Higgs Physics as a Window Beyond the MSSM (BMSSM)
• Low-scale supersymmetry breaking: effective description, electroweak breaking and phenomenology
• Astrophysical and Cosmological Implications of Large Volume String Compactifications
• The MSSM fine tuning problem: a way out
• Bounds on Kaluza-Klein excitations of the SM vector bosons from electroweak tests
• The complete radiative corrections to the gaugino and Higgsino masses in the Minimal Supersymmetric Model
• Radiative Corrections to Neutralino and Chargino Masses in the Minimal Supersymmetric Model
• Dimensionless supersymmetry breaking couplings, flat directions, and the origin of intermediate mass scales
• mu and General Gauge Mediation
• MSSM with Dimension-five Operators (MSSM_5)
• A New Approach to mu-Bmu
• One loop corrections to the Neutralino sector and Radiative Electroweak Breaking in the MSSM
• Running into New Territory in SUSY Parameter Space
• Beyond MSSM Baryogenesis
• The Supersymmetric Higgs
• Two Higgs Models for Large Tan Beta and Heavy Second Higgs
• Impact on the Light Higgsino-LSP Scenario from Physics beyond the Minimal Supersymmetric Standard Model
• Gauge Mediation with a small mu term and light squarks
• Higher Dimensional Operators in the MSSM

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• The nature of dark matter from the global high redshift HI 21 cm signal
• Supersymmetric Higgs Bosons and Beyond
• Signals of CP Violation Beyond the MSSM in Higgs and Flavor Physics
• Particle energy cascade in the Intergalactic Medium
• Dark matter detection in the BMSSM
• CP violation Beyond the MSSM: Baryogenesis and Electric Dipole Moments
• BMSSM Higgs Bosons at the Tevatron and the LHC
• Light neutralino dark matter with a very light Higgs for CoGeNT and DAMA/LIBRA data
• Supersymmetric Higgses beyond the MSSM: An update with flavour and Dark Matter constraints
• BMSSM Higgs Bosons at the 7 TeV LHC
• Higgs diphoton rate enhancement from supersymmetric physics beyond the MSSM
• SUSY Higgs searches : beyond the MSSM
• Flavour physics constraints in the BMSSM
• Neutralino and chargino masses and related sum rules beyond MSSM
• The Dark Side of Electroweak Naturalness Beyond the MSSM
• Composite Higgsino