Effective Dark Matter Model: Relic density, CDMS II, Fermi LAT and LHC

Abstract

The Cryogenic Dark Matter Search recently announced the observation of two signal events with a 77% confidence level. Although statistically inconclusive, it is nevertheless suggestive. In this work we present a model-independent analysis on the implication of a positive signal in dark matter scattering off nuclei. Assuming the interaction between (scalar, fermion or vector) dark matter and the standard model induced by unknown new physics at the scale $\Lambda$, we examine various dimension-6 tree-level induced operators and constrain them using the current experimental data, e.g. the WMAP data of the relic abundance, CDMS II direct detection of the spin-independent scattering, and indirect detection data (Fermi LAT cosmic gamma-ray), etc. Finally, the LHC reach is also explored.

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• New or $\nu$ Missing Energy? Discriminating Dark Matter from Neutrino Interactions at the LHC
• Dark Matter on Top
• Illuminating New Electroweak States at Hadron Colliders
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• Supersymmetry: Aspirations and Prospects
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• Mono-jet Signatures of Gluphilic Scalar Dark Matter
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• Analysis of Direct and Indirect Detection of Fermionic Dark Matter of 6-Dimensional Effective Field Theory
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• Determining the masses of invisible particles: Application to Higgs boson invisible decay
• New Physics and Two Boosted W-jets plus Missing Energy