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Renormalization group approach to soft gluon resummation

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arxiv hep-ph/0209154 v2 pith:3VZZVRO2 submitted 2002-09-13 hep-ph

Stefano Forte , Giovanni Ridolfi This is my paper · ORCID
classification hep-ph
keywords resummedsoftall-orderfactorizationgrouplevelrenormalizationresult
verification ladder T0 review T1 audit T2 compute T3 formal
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We present a simple proof of the all-order exponentiation of soft logarithmic corrections to hard processes in perturbative QCD. Our argument is based on proving that all large logs in the soft limit can be expressed in terms of a single dimensionful variable, and then using the renormalization group to resum them. Beyond the next-to-leading log level, our result is somewhat less predictive than previous all-order resummation formulae, but it does not rely on non-standard factorization, and it is thus possibly more general. We use our result to settle issues of convergence of the resummed series, we discuss scheme dependence at the resummed level, and we provide explicit resummed expressions in various factorization schemes.

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Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

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