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Open Access item Search for hadronic decays of W and Z bosons in photon events in p(p)over-bar collisions at root s=1.96 TeV

Authors:CDF Collaboration
Cabrera, Susana
Cuenca Almenar, Cristóbal
Álvarez González, B.
Casal, Bruno
Cuevas, Javier
Gómez, G.
Rodrigo, Teresa
Ruiz, Alberto
Scodellaro, Luca
Vila, Iván
Vilar, Rocío
Aaltonen, T.
Issue Date:28-Sep-2009
Publisher:American Physical Society
Citation:Physical Review - Section D - Particles and Fields 80 (5): 052011 (2009)
Abstract:We report on a search for the process p (p) over bar -> gamma + W/Z with W/Z -> q (q) over bar in events containing two jets and a photon at the center-of-mass energy root s 1.96 TeV, using 184 pb(-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 gamma + W/Z production cross section with the W and Z decaying hadronically.
Publisher version (URL):http://dx.doi.org/ 10.1103/PhysRevD.80.052011
URI:http://hdl.handle.net/10261/22146
ISSN:1550-7998
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Appears in Collections:(IFIC) Artículos

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