Carruthers, P. and Fishbane, P. and Zachariasen, F. (1977) High-energy scattering of quarks in gauge theories. Physical Review D, 15 (12). pp. 3675-3688. ISSN 0556-2821. http://resolver.caltech.edu/CaltechAUTHORS:CARprd77
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High-energy quark-quark scattering is calculated in quantum chromodynamics (QCD) using the infrared equation of Cornwall and Tiktopoulos. In contrast to ordinary quantum electrodynamics, the high-energy behavior is determined by the infrared structure. The infrared divergence is regulated by introduction of a small gluon mass; the amplitudes obtained agree with previous perturbation calculations (for t fixed, s→∞) in QCD modified by the addition of a Higgs meson in the limit of small gluon mass. A proposal to calculate the infrared-finite behavior at fixed angle using asymptotic freedom is made, based on the hypothesis that the infrared divergence can be factored from an infrared-finite and renormalization-point-dependent part. The latter is calculable for the colorless exchange amplitude but not for the color exchange amplitude.
|Additional Information:||©1977 The American Physical Society Received 18 January 1977 Research performed under the auspices of the U.S.E.R.D.A. Work supported in part by the National Science Foundation under Grant No. MPS-72-05166-A01. Work supported in part by U.S.E.R.D.A. under contract No. AT(11-1)-68 for the San Francisco Operations Office.|
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|Deposited On:||06 May 2006|
|Last Modified:||26 Dec 2012 08:51|
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