Effective predictions of event shapes: factorized, resummed and gapped angularity distributions
نویسندگان
چکیده
منابع مشابه
Effective Predictions of Event Shapes: Factorized, Resummed, and Gapped Angularity Distributions
Using soft-collinear effective theory (SCET), which provides a unified framework for factorization, resummation of logarithms, and incorporation of universal nonperturbative functions in hard-scattering QCD cross-sections, we present a new prediction of angularity distributions in e+e− annihilation. Angularities τa are an infinite class of event shapes which vary in their sensitivity to the sub...
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Using the framework of soft-collinear effective theory (SCET), we factorize and calculate e+e− angularity distributions, including perturbative resummation and the incorporation of a universal model for the nonperturbative soft function. Angularities τa are a class of event shapes varying in their sensitivity to the substructure of jets in the final state, controlled by a continuous parameter a...
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This article introduces definitions for a number of new event shapes and jet-rates in hadron-hadron dijet production. They are designed so as to be measurable in practice at the Tevatron and the LHC, and to be global so that they can be resummed with currently available techniques. We explain how to vary their sensitivity to beam fragmentation, limiting its impact for purely perturbative studie...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2009
ISSN: 1029-8479
DOI: 10.1088/1126-6708/2009/05/122