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Measurement of the cross section for prompt isolated diphoton production in pp¯ collisions at vs=1.96TeV

Abstract: This Letter reports a measurement of the cross section of prompt isolated photon pair production in p¯p collisions at a total energy ?s=1.96 ?TeV using data of 5.36fb?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 parton shower calculation and two next-to-leading order calculations. The next-to-leading order 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 next-to-leading order predictions.

Other publications of the same journal or congress with authors from the University of Cantabria

Authorship: Aaltonen T., Álvarez González B., Amerio S., Amidei D., Anastassov A., Annovi A., Antos J., Apollinari G., Appel J.A., Apresyan A., Arisawa T., Artikov A., Asaadi J., Ashmanskas W., Auerbach B., Aurisano A., Azfar F., Badgett W., Barbaro-Galtieri A., Barnes V.E., Barnett B.A., Barria P., Bartos P., Bauce M., Bauer G., Bedeschi F., Beecher D., Behari S., Bellettini G., Bellinger J., Benjamin D., Beretvas A., Bhatti A., Binkley M.,

Fuente: Physical Review Letters, 2011, 107(10), 102003

Publisher: American Physical Society

Publication date: 01/09/2011

No. of pages: 8

Publication type: Article

DOI: 10.1103/PhysRevLett.107.102003

ISSN: 0031-9007,1079-7114

Publication Url: https://doi.org/10.1103/PhysRevLett.107.102003

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