Search for the rare radiative decay W→πγ in pp̅ collisions at √s=1.96 TeV
Author(s)
Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Paus, Christoph M. E.; Bauer, Gerry P; Makhoul, Khaldoun
DownloadAaltonen-2012-Search for the Rare Radiative Decay.pdf (160.6Kb)
PUBLISHER_POLICY
Publisher Policy
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.
Terms of use
Metadata
Show full item recordAbstract
We present a search for the rare radiative decay W[superscript ±]→π[superscript ±]γ using data corresponding to an integrated luminosity of 4.3 fb[superscript -1] of proton-antiproton collisions at a center-of-mass energy of 1.96 TeV collected by the CDF experiment at Fermilab. As no statistically significant signal is observed, we set a 95%-confidence-level upper limit on the relative branching fraction Γ(W[superscript ±]→π[superscript ±]γ)/Γ(W[superscript ±]→e[superscript ±]ν) at 6.4×10[superscript -5], a factor of 10 improvement over the previous limit.
Date issued
2012-02Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear ScienceJournal
Physical Review D
Publisher
American Physical Society
Citation
Aaltonen, T. et al. “Search for the Rare Radiative Decay W→πγ in Pp[over ¯] Collisions at Sqrt[s]=1.96 TeV.” Physical Review D 85.3 (2012): Web. 11 May 2012. © 2012 American Physical Society
Version: Final published version
ISSN
1550-7998
1089-4918