Search for a heavy vector boson decaying to two gluons in pp̅ collisions at √s=1.96 TeV
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Aaltonen-2012-Search for a heavy vector boson decaying to two gluons.pdf
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Author(s)
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Paus, Christoph M. E.
Date Issued
December 2012
Journal
Physical Review D
Publisher
American Physical Society
Citation
Aaltonen, T. et al. “Search for a heavy vector boson decaying to two gluons in pp̅ collisions at √s=1.96 TeV.” Physical Review D 86.11 (2012). © 2012 American Physical Society
Version
Final published version
Abstract
We present a search for a new heavy vector boson Z[superscript ′] that decays to gluons. Decays to on-shell gluons are suppressed, leading to a dominant decay mode of Z[superscript ′]→g[superscript *]g. We study the case where the off-shell gluon g[superscript *] converts to a pair of top quarks, leading to a final state of tt̅ g. In a sample of events with exactly one charged lepton, large missing transverse momentum and at least five jets, corresponding to an integrated luminosity of 8.7 fb[superscript -1] collected by the CDF II detector, we find the data to be consistent with the standard model. We set upper limits on the production cross section times branching ratio of this chromophilic Z[superscript ′] at 95% confidence level from 300 to 40 fb for Z[superscript ′] masses ranging from 400 to 1000 GeV/c[superscript 2], respectively.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.86.112002
