Search for dark matter in events with one jet and missing transverse energy in ppˉ collisions at √is=1.96 TeV

0389140 - FZÚ 2013 RIV US eng J - Journal Article
Aaltonen, T. - Gonzalez, B.A. - Amerio, S. - Lysák, Roman … Total 476 authors
Search for dark matter in events with one jet and missing transverse energy in ppˉ collisions at √is=1.96 TeV.
Physical Review Letters. Roč. 108, č. 21 (2012), "211804-1"-"211804-7". ISSN 0031-9007. E-ISSN 1079-7114
R&D Projects: GA MŠMT LC527
Institutional research plan: CEZ:AV0Z10100502
Keywords : CDF * Batavia TEVATRON * dark matter * cross section * jet production
Subject RIV: BF - Elementary Particles and High Energy Physics
Impact factor: 7.943, year: 2012
http://arxiv.org/abs/arXiv:1203.0742

We present the results of a search for dark matter production in the monojet signature. We analyze a sample of Tevatron pp-bar collisions at sqrt(s)=1.96 TeV corresponding to an integrated luminosity of 6.7/fb 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 5 GeV/c^2, and on spin-dependent interactions up to masses of 200 GeV/c^2.
Permanent Link: http://hdl.handle.net/11104/0218018