Measurement of the cross section for prompt isolated diphoton production in pp̅ collisions at √s=1.96 TeV
Author(s)
Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Paus, Christoph M. E.; Bauer, Gerry P; Makhoul, Khaldoun
DownloadAaltonen-2011-Measurement of the cross section for prompt isolated.pdf (2.036Mb)
PUBLISHER_POLICY
Publisher Policy
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Terms of use
Metadata
Show full item recordAbstract
This article reports a measurement of the production cross section of prompt isolated photon pairs in proton-antiproton collisions at √s=1.96 TeV using the CDF II detector at the Fermilab Tevatron collider. The data correspond to an integrated luminosity of 5.36 fb[superscript -1]. The cross section is presented as a function of kinematic variables sensitive to the reaction mechanisms. The results are compared with three perturbative QCD calculations: (1) a leading-order parton shower Monte Carlo, (2) a fixed next-to-leading-order calculation and (3) a next-to-leading-order/next-to-next-to-leading-log resummed calculation. The comparisons show that, within their known limitations, all calculations predict the main features of the data, but no calculation adequately describes all aspects of the data.
Date issued
2011-09Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear ScienceJournal
Physical Review D
Publisher
American Physical Society (APS)
Citation
Aaltonen, T. et al. “Measurement of the cross section for prompt isolated diphoton production in pp[over ¯] collisions at sqrt[s]=1.96 TeV.” Physical Review D 84.5 (2011): n. pag. Web. 26 Jan. 2012. © 2011 American Physical Society
Version: Final published version
ISSN
1550-7998
1089-4918