Abstract

An analysis is given connecting event rates for the direct detection of neutralino dark matter with the possible signatures of supersymmetry at the LHC. It is shown that if an effect is seen in the direct detection experiments at a level of O(10⁻⁴⁴) cm² for the neutralino-proton cross section, then within the mSUGRA model the next heavier particle above the neutralino is either a stau, a chargino, or a CP odd/CP even (A/H) Higgs boson. Further, the collider analysis shows that models with a neutralino-proton cross section at the level of (1 − 5) × 10⁻⁴⁴ cm² could be probed with as little as 1 fb⁻¹ of integrated luminosity at the LHC at √s = 7, 10 TeV. The most recent limit from the five tower CDMS II result on WIMP-nucleon cross section is discussed in this context. It is argued that the conclusions of the analysis given here are more broadly applicable with inclusion of non-universalities in the SUGRA models.

Notes

Originally posted at http://arxiv.org/abs/0912.4217v2. Preprint of an article published in Physical Review D, 2009.

Keywords

neutralinos, LHC, sparticle, high energy physics phenomenology

Subject Categories

Large Hadron Collider (France and Switzerland), Phenomenological theory (Physics), Supersymmetry, Dark matter (Astronomy)

Disciplines

Physics

Publication Date

2009



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