Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1857668 | Annals of Physics | 2008 | 25 Pages |
Abstract
It is shown that exact, amplitude-based resummation allows IR-improvement of the usual DGLAP-CS theory. This results in a new set of kernels, parton distributions and attendant reduced cross sections, so that the QCD perturbative result for the respective hadron-hadron or lepton-hadron cross section is unchanged order-by-order in αs at large squared-momentum transfers. We compare these new objects with their usual counter-parts and illustrate the effects of the IR-improvement in some phenomenological cases of interest with an eye toward precision applications in LHC physics scenarios.
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Physical Sciences and Engineering
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Physics and Astronomy (General)
Authors
B.F.L. Ward,