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Título : Search for hadronic decays of W and Z bosons in photon events in p(p)over-bar collisions at root s=1.96 TeV
Autor : 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.
Fecha de publicación : 28-Sep-2009
Editor: American Physical Society
Resumen: 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.
Versión del editor: 10.1103/PhysRevD.80.052011
ISSN: 1550-7998
DOI: 10.1103/PhysRevD.80.052011
Citación : Physical Review - Section D - Particles and Fields 80 (5): 052011 (2009)
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