Search for hadronic decays of W and Z bosons in photon events in pp-bar collisions at sqrt[s]=1.96 TeV
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Aaltonen-2009-Search for hadronic.pdf
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Author(s)
Miles, Christopher J.
Leonardo, N.
Knuteson, Bruce O.
Klute, Markus
Iyutin, Boris
Henderson, C.
Hahn, Kristian Allan
Gomez-Ceballos, Guillelmo
Choudalakis, Georgios
Bolshov, Arkadiy
Alternative Title
Search for hadronic decays of W and Z bosons in photon events in pp̅ collisions at √s=1.96 TeV
Date Issued
September 2009
Journal
Physical Review D
Publisher
American Physical Society
Citation
CDF Collaboration et al. “Search for hadronic decays of W and Z bosons in photon events in pp-bar collisions at s=1.96 TeV.” Physical Review D 80.5 (2009): 052011. © 2009 The American Physical Society
Version
Final published version
Abstract
We report on a search for the process pp̅ →γ+W/Z with W/Z→qq̅ in events containing two jets and a photon at the center-of-mass energy √s=1.96 TeV, using 184 pb[superscript -1] of data collected by the CDF II detector. A neural network event selection has been developed to optimize the rejection of the large QCD production background; it is shown that this method gives a significant improvement in both signal-to-noise ratio and signal sensitivity, as compared with an event selection based on conventional cuts. An upper limit is presented for the γ+W/Z production cross section with the W and Z decaying hadronically.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
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
http://dx.doi.org/10.1103/PhysRevD.80.052011
