Accurate relic densities with neutralino, chargino and sfermion coannihilations in mSUGRA

Abstract

Neutralinos arise as natural dark matter candidates in many supersymmetric extensions of the Standard Model. We present a novel calculation of the neutralino relic abundance in which we include all so called coannihilation processes between neutralinos, charginos and sfermions, and, at the same time, we apply the state of the art technique to trace the freeze-out of a species in the early Universe. As a first application, we discuss here results valid in the mSUGRA framework; we enlight general trends as well as perform a detailed study of the neutralino relic densities in the mSUGRA parameter space. The emerging picture is fair agreement with previous analyses in the same framework, however we have the power to discuss it in many more details than previously done. E.g., we find that the cosmological bound on the neutralino mass is pushed up to ~565 GeV in the stau coannihilation region and to ~1500 GeV in the chargino coannihilation region.

arXiv comment32 pages, 14 figures, LaTeX, uses JHEP3.cls, Changes: references added, text clarified, conclusions unchanged

References in corpus (29)

• Supersymmetric Dark Matter
• The Cosmic Triangle: Revealing the State of the Universe
• SOFTSUSY: a program for calculating supersymmetric spectra
• Neutralino Relic Density including Coannihilations
• micrOMEGAs: A program for calculating the relic density in the MSSM
• The Neutralino Relic Density in Minimal N=1 Supergravity
• Multi-TeV Scalars are Natural in Minimal Supergravity
• Focus Points and Naturalness in Supersymmetry
• Neutralino Dark Matter in Focus Point Supersymmetry
• Calculations of Neutralino-Stau Coannihilation Channels and the Cosmologically Relevant Region of MSSM Parameter Space
• Neutralino-Stau Coannihilation and the Cosmological Upper Limit on the Mass of the Lightest Supersymmetric Particle
• QCD Effects in Higgs Physics
• The CMSSM Parameter Space at Large tan beta
• Light Scalar Top Quarks and Supersymmetric Dark Matter
• Exploration of the MSSM with Non-Universal Higgs Masses
• Constraints on the Minimal Supergravity Model and Prospects for SUSY Particle Production at Future Linear e^+ e^- Colliders
• Supersymmetric Cold Dark Matter with Yukawa Unification
• Neutralino relic density in minimal supergravity with co-annihilations
• Coannihilation Effects and Relic Abundance of Higgsino-Dominant LSPs
• Calculations of Neutralino-Stop Coannihilation in the CMSSM
• Coannihilation Effects in Supergravity and D-Brane Models
• Supernatural Supersymmetry: Phenomenological Implications of Anomaly-Mediated Supersymmetry Breaking
• Constraining Supersymmetry
• Determination of ${\alpha }_s$ and heavy quark masses from recent measurements of $R(s)$
• Exact Cross Sections for the Neutralino-Slepton Coannihilation
• Yukawa Quasi-Unification
• Limits on direct detection of neutralino dark matter from b -> s gamma decays
• Squark-, Slepton- and Neutralino-Chargino coannihilation effects in the low-energy effective MSSM
• Slepton and Neutralino/Chargino Coannihilations in MSSM

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• A Statistical Analysis of Supersymmetric Dark Matter in the MSSM after WMAP
• Neutralino dark matter in mSUGRA/CMSSM with a 125 GeV light Higgs scalar
• Dark Matter in the Finely Tuned Minimal Supersymmetric Standard Model
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