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Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/52114
Title: Search for the rare radiative decay W→πγ in pp̄ collisions at √s=1.96TeV
Authors: Aaltonen, T.; Álvarez González, B.; Casal, Bruno; Cuevas, Javier; Gómez, G.; Gómez-Ceballos, Guillelmo; Palencia, Enrique; Rodrigo, Teresa; Scodellaro, Luca; Vila, Iván; Vilar, Rocío; Vizán, J.; CDF Collaboration
Issue Date: 2012
Publisher: American Physical Society
Citation: Physical Review D 85(3): 032001 (2012)
Abstract: We present a search for the rare radiative decay W ±→ π ±γ using data corresponding to an integrated luminosity of 4.3fb -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 ±→π ±γ)/Γ(W ±→e ±ν) at 6.4×10 -5, a factor of 10 improvement over the previous limit. © 2012 American Physical Society.
Publisher version (URL): http://dx.doi.org/10.1103/PhysRevD.85.032001
URI: http://hdl.handle.net/10261/52114
DOI: 10.1103/PhysRevD.85.032001
Identifiers: doi: 10.1103/PhysRevD.85.032001
issn: 1550-7998
e-issn: 1550-2368
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