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Open Access item Measurement of the inclusive isolated prompt photon cross section in pp collisions at s=1.96 TeV using the CDF detector

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:21-Dec-2009
Publisher:American Physical Society
Citation:Physical Review - Section D - Particles and Fields 80 (11): 111106 (2009)
Abstract:A measurement of the cross section for the inclusive production of isolated photons by the CDF experiment at the Fermilab Tevatron collider is presented. The measurement covers the pseudorapidity region |eta(gamma)|< 1.0 and the transverse energy range E-T(gamma)> 30 GeV and is based on 2.5 fb(-1) of integrated luminosity. The sample is almost a factor of 7 larger than those used for recent published results and extends the E-T(gamma) coverage by 100 GeV. The result agrees with next-to-leading order perturbative QCD calculations within uncertainties over the range 50 < E-T(gamma)< 400 GeV, though the energy spectrum in the data shows a steeper slope at lower E-T(gamma).
Publisher version (URL):http://dx.doi.org/ 10.1103/PhysRevD.80.111106
URI:http://hdl.handle.net/10261/22306
ISSN:1550-7998
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Appears in Collections:(IFIC) Artículos

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