Neutralino dark matter in focus point supersymmetry

By Jonathan L. Feng, Konstantin T. Matchev, Frank Wilczek. 2000

306 citations recorded by the source corpus.

Abstract In recent work, it has been argued that multi-TeV masses for scalar superpartners are not unnatural. Indeed, they appear to have significant phenomenological virtues. Here we explore the implications of such `focus point' supersymmetry for the dark matter problem. We find that constraints on relic densities do not place upper bounds on neutralino or scalar masses. We demonstrate that, in the specific context of minimal supergravity, a cosmologically stable mixed gaugino-Higgsino state emerges as an excellent, robust dark matter candidate. We estimate that, over a wide range of the unknown parameters, the spin-independent proton-neutralino cross sections fall in the range accessible to planned search experiments.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/25a71d72379e8c93acd134abb5f7b2ab107b5e8f

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Citations in the corpus

Dark Matter Candidates from Particle Physics and Methods of Detection (2010, background): “More detailed study shows that σSI is almost independent of mχ and has a value near 10 −44 cm(2) (78).”
Galactic Searches for Dark Matter (2012, background): “If the projected sensitivity is achieved, it is expected to cover a large portion of the so-called focus point region of supersymmetric parameter space (Feng et al., 2000).”
Prospects for indirect detection of neutralino dark matter (2000, methodology): “Recently we have argued more specifically that, even in minimal models, these studies failed to examine a very well-motivated regime of parameters, and that for this reason their conclusions are overly pessimistic [6].”
In wino veritas? Indirect searches shed light on neutralino dark matter (2013, background): “The thermal history is the well-tempered scenario [32] (for earlier references, see [33–35]) while the non-thermal history could be one of or a mixture of those for the single states depending on the composition;”
Naturalness and the Status of Supersymmetry (2013, background): “Last, the prospects for WIMP dark matter detection are extremely promising in focus point models [37, 142].”