Cross section of isolated prompt photons in hadron-hadron collisions View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2002-05-16

AUTHORS

Stefano Catani, Michel Fontannaz, Jean-Philippe Guillet, Eric Pilon

ABSTRACT

We consider the production of isolated prompt photons in hadronic collisions. We present a general discussion in QCD perturbation theory of the isolation criterion used by hadron collider experiments. The isolation criterion is implemented in a computer programme of the Monte Carlo type, which evaluates the production cross section at next-to-leading order accuracy in perturbative QCD. The calculation includes both the direct and the fragmentation components of the cross section, without any approximation of the dependence on the radius R of the isolation cone. We examine the scale dependence of the isolated cross section, the sensitivity of the cross section to the values of the isolation parameters, and we provide a quantitative comparison between the full R dependence and its small-R approximation. More... »

PAGES

028

Identifiers

URI

http://scigraph.springernature.com/pub.10.1088/1126-6708/2002/05/028

DOI

http://dx.doi.org/10.1088/1126-6708/2002/05/028

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1012171609


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