Date of Original Version

4-5-2011

Type

Article

Rights Management

© 2012 American Physical Society

Abstract or Description

We introduce a systematic approach for the resummation of perturbative series which involves large logarithms not only due to large invariant mass ratios but large rapidities as well. A series of this form can appear in a variety of gauge theory observables. The formalism is utilized to calculate the jet broadening event shape in a systematic fashion to next-to-leading logarithmic order. An operator definition of the factorized cross section as well as a closed form of the next-to-leading-log cross section are presented. The result agrees with the data to within errors.

DOI

http://dx.doi.org/10.1103/PhysRevLett.108.151601

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Published In

Physical Review Letters, 108, 151601.