Search for the Production of Scalar Bottom Quarks in pp¯ collisions at √s = 1.96 TeV
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PhysRevLett.105.081802.pdf
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Author(s)
CDF Collaboration
Bauer, Gerry P
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Makhoul, Khaldoun
Paus, Christoph M. E.
Date Issued
August 2010
Journal
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
Abstract
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.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.105.081802
