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Two-Loop QED and QCD Corrections to Massless Fermion-Boson Scattering [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy. Office of Energy Research, 2002.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
vp : digital, PDF file
Additional Creators
Stanford Linear Accelerator Center, United States. Department of Energy. Office of Energy Research, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
The authors present the NNLO QCD virtual corrections for q{bar q} → gγ, q{bar q} → γγ and the NNLO QED virtual corrections for e⁺e⁻ → γγ, and all processes related by crossing symmetry. They perform an explicit evaluation of the two-loop diagrams in conventional dimensional regularization, and their results are renormalized in the {bar M}{bar S} scheme. The infrared pole structure of the amplitudes is in agreement with the prediction of Catani's general formalism for the singularities of two-loop amplitudes, while expressions for the finite remainder are given for all processes in terms of logarithms and polylogarithms that are real in the physical region.
Report Numbers
E 1.99:slac-pub-9130
slac-pub-9130
Subject(s)
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Note
Published through SciTech Connect.
02/12/2002.
"slac-pub-9130"
Anastasiou, Charalampos.
Type of Report and Period Covered Note
Topical;
Funding Information
AC03-76SF00515
View MARC record | catkey: 13823685