Search for Dark Matter in Events with One Jet and Missing Transverse Energy in pp¯ Collisions at s=1.96TeV

T. Aaltonen et al. (CDF Collaboration)
Phys. Rev. Lett. 108, 211804 – Published 23 May 2012
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Abstract

We present the results of a search for dark matter production in the monojet signature. We analyze a sample of Tevatron pp¯ collisions at s=1.96TeV corresponding to an integrated luminosity of 6.7fb1 recorded by the CDF II detector. In events with large missing transverse energy and one energetic jet, we find good agreement between the standard model prediction and the observed data. We set 90% confidence level upper limits on the dark matter production rate. The limits are translated into bounds on nucleon-dark matter scattering rates which are competitive with current direct detection bounds on spin-independent interaction below a dark matter candidate mass of 5GeV/c2, and on spin-dependent interactions up to masses of 200GeV/c2.

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  • Received 1 March 2012

DOI:https://doi.org/10.1103/PhysRevLett.108.211804

© 2012 American Physical Society

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Vol. 108, Iss. 21 — 25 May 2012

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