Measurement of the Cross Section for Prompt Isolated Diphoton Production Using the Full CDF Run II Data Sample
Name
Aaltonen-2013-Measurement of the Cross Section for Prompt Isolated Diphoton Production Using the Full CDF Run II Data Sample.pdf
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302.71 KB
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Author(s)
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Paus, Christoph M. E.
Date Issued
March 2013
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Aaltonen, T. et al. “Measurement of the Cross Section for Prompt Isolated Diphoton Production Using the Full CDF Run II Data Sample.” Physical Review Letters 110.10 (2013). ©2013 American Physical Society
Version
Final published version
Abstract
This Letter reports a measurement of the cross section for producing pairs of central prompt isolated photons in proton-antiproton collisions at a total energy √s=1.96 TeV using data corresponding to 9.5 fb[superscript -1] integrated luminosity collected with the CDF II detector at the Fermilab Tevatron. The measured differential cross section is compared to three calculations derived from the theory of strong interactions. These include a prediction based on a leading order matrix element calculation merged with a parton shower model, a next-to-leading order calculation, and a next-to-next-to-leading order calculation. The first and last calculations reproduce most aspects of the data, thus showing the importance of higher-order contributions for understanding the theory of strong interaction and improving measurements of the Higgs boson and searches for new phenomena in diphoton final states.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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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.
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.110.101801
