Measurement of the inclusive isolated prompt photon cross section in pp̅ collisions at √s=1.96  TeV using the CDF detector

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URI: http://hdl.handle.net/10902/2007
ISSN: 1550-7998
ISSN: 1550-2368
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Autoría
Aaltonen, Timo Antero; Álvarez González, Bárbara; Amerio, Silvia; Amidei, Dante; Anastassov, Anton; Annovi, Alberto; Antos, Jaroslav; Apollinari, Giorgio; Apresyan, Artur; Arisawa, Tetsuo; Casal Laraña, Bruno; Cuevas Maestro, Francisco Javier; Gómez Gramuglio, GervasioAutoridad Unican; Rodrigo Anoro, TeresaAutoridad Unican; Ruiz Jimeno, AlbertoAutoridad Unican; Scodellaro, LucaAutoridad Unican; Vila Álvarez, Iván Autoridad Unican; Vilar Cortabitarte, RocíoAutoridad Unican; Artikov, A.; [et al.]
Fecha
2009-12-21
Derechos
© 2009 The American Physical Society
Publicado en
Physical review. D, Particles, fields, gravitation, and cosmology, vol. 80, iss. 11, art. num. 111106(R) (2009)
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American Physical Society
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Resumen/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 |ηγ|<1.0 and the transverse energy range ETγ>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 ETγ coverage by 100 GeV. The result agrees with next-to-leading order perturbative QCD calculations within uncertainties over the range 50<ETγ<400  GeV, though the energy spectrum in the data shows a steeper slope at lower ETγ.
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