Search for Resonances Decaying to Top and Bottom Quarks with the CDF Experiment
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PhysRevLett.115.061801.pdf
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Author(s)
Aaltonen, T.
Amerio, S.
Amidei, D.
Anastassov, A.
Annovi, A.
Antos, J.
Anzà, F.
Apollinari, G.
Appel, J. A.
Arisawa, T.
Date Issued
August 2015
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Aaltonen, T., et al. "Search for Resonances Decaying to Top and Bottom Quarks with the CDF Experiment." Phys. Rev. Lett. 115, 061801 (August 2015). © 2015 American Physical Society
Version
Final published version
Abstract
We report on a search for charged massive resonances decaying to top (t) and bottom (b) quarks in the full data set of proton-antiproton collisions at a center-of-mass energy of √s = 1.96 TeV collected by the CDF II detector at the Tevatron, corresponding to an integrated luminosity of 9.5 fb[superscript -1]. No significant excess above the standard model background prediction is observed. We set 95% Bayesian credibility mass-dependent upper limits on the heavy charged-particle production cross section times branching ratio to tb. Using a standard model extension with a W[superscript ′] → tb and left-right-symmetric couplings as a benchmark model, we constrain the W[superscript ′] mass and couplings in the 300–900 GeV/c[superscript 2] range. The limits presented here are the most stringent for a charged resonance with mass in the range 300–600 GeV/c[superscript 2] decaying to top and bottom quarks.
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.115.061801
