Re-evaluation of the elastic scattering of supersymmetric dark matter

By John Ellis, Andrew Ferstl, K. Olive. 2000

325 citations recorded by the source corpus.

Abstract We examine the cross sections for the elastic scattering of neutralinos χ on nucleons p,n, as functions of mχ in the constrained minimal supersymmetric standard model. We find narrow bands of possible values of the cross section, that are considerably lower than some previous estimates. The constrained model is based on the minimal supergravity-inspired framework for the MSSM, with universal scalar and gaugino masses m0,m1/2, and μ and the MSSM Higgs masses treated as dependent parameters. We explore systematically the region of the (m1/2,m0) plane where LEP and other accelerator constraints are respected, and the relic neutralino density lies in the range 0.1≤Ω χ h 2 ≤0.3 preferred by cosmology. We update previous discussions of both the spin-independent and -dependent scattering matrix elements on protons and neutrons, using recent analyses of low-energy hadron experiments.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/64e36c1729b86062612a896adbe3f1691e39bb94

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In Nuclear and High Energy Physics

Citations in the corpus

The 511 keV emission from positron annihilation in the Galaxy (2010, unknown): “…to elastic cross sections of the order of 10−43cm2 (corresponding to < σv >∼ 10−33 cm3 s−1), and the annihilation rate σv ∼ 3 10−26 cm3 s−1 imposed by the ”relic density” criterion (corresponding to σ ∼ 10−36 cm2), one often has to “decouple” the corresponding processes (Ellis et al., 2000)20.”
Dark matter detection in the light of recent experimental results (2003, unknown): “m2QL = m (2)(1 + δ3) , m 2 uR = m (2)(1 + δ4) , m2eR = m (2)(1 + δ5) , m 2 dR = m (2)(1 + δ6) , m2LL = m (2)(1 + δ7) , (28)”
Complex scalar singlet dark matter: Vacuum stability and phenomenology (2012, background): “are calculated in [67]; we take the central values”
Dark Matter through the Higgs portal (2019, unknown): “[568–570]) and reads 2 ( mχ01 + μ sin 2β ) /M h ' −μ tan β/M H .”
On naturalness of the MSSM and NMSSM (2012, unknown): “062 [66].”
Characterising dark matter searches at colliders and direct detection experiments: vector mediators (2014, unknown): “[100–102]) and differ by O(10%).”