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Measurement of the cross section for prompt isolated diphoton production in pp̄ collisions at √s=1.96TeV

Aaltonen, T.
•
Álvarez González, B.
•
Amerio, S.
altro
SANTI, Lorenzo Gianni
2011
  • journal article

Periodico
PHYSICAL REVIEW LETTERS
Abstract
This letter reports a measurement of the cross section of prompt isolated photon pair production in p-pbar collisions at a total energy √s= 1.96 TeV using data of 5.36 fb−1 integrated luminosity collected with the CDF II detector at the Fermilab Tevatron. The measured cross section, differential in basic kinematic variables, is compared with three perturbative QCD predictions, a leading order (LO) parton shower calculation and two next-to-leading order (NLO) calculations. The NLO calculations reproduce most aspects of the data. By including photon radiation from quarks before and after hard scattering, the parton shower prediction becomes competitive with the NLO predictions.
DOI
10.1103/PhysRevLett.107.102003
WOS
WOS:000294474700002
Archivio
http://hdl.handle.net/11390/1084560
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-80052380450
http://oai.aps.org/filefetch?identifier=10.1103/PhysRevLett.107.102003&component=fulltext&description=markup&format=xml
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Soggetti
  • Physics and Astronomy...

Scopus© citazioni
11
Data di acquisizione
Jun 14, 2022
Vedi dettagli
Web of Science© citazioni
7
Data di acquisizione
Mar 25, 2024
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