Search for the Production of Scalar Bottom Quarks in pp¯ collisions at √s = 1.96 TeV
Author(s)
CDF Collaboration; Bauer, Gerry P; Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Makhoul, Khaldoun; Paus, Christoph M. E.; ... Show more Show less
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We report on a search for direct scalar bottom quark (sbottom) pair production in pp̄ collisions at √s = 1.96 TeV, in events with large missing transverse energy and two jets of hadrons in the final state, where at least one of the jets is required to be identified as originating from a b quark. The study uses a collider detector at Fermilab Run II data sample corresponding to 2.65 fb ⁻¹ of integrated luminosity. The data are in agreement with the standard model. In an R-parity conserving minimal supersymmetric scenario, and assuming that the sbottom decays exclusively into a bottom quark and a neutralino, 95% confidence-level upper limits on the sbottom pair production cross section of 0.1 pb are obtained. For neutralino masses below 70 GeV/c², sbottom masses up to 230 GeV/c² are excluded at 95% confidence level.
Date issued
2010-08Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear ScienceJournal
Physical Review Letters
Publisher
American Physical Society (APS)
Citation
Aaltonen, T., J. Adelman, B. Álvarez González, S. Amerio, D. Amidei, A. Anastassov, A. Annovi, et al. “Search for the Production of Scalar Bottom Quarks in pp¯ collisions at √s = 1.96 TeV.” Physical Review Letters 105, 8 (August 2010): 081802 © 2010 The American Physical Society
Version: Final published version
ISSN
0031-9007
1079-7114