Nonperturbative Effects in Event Shapes from Soft-Collinear Effective Theory

Details Nonperturbative Effects in Event Shapes from Soft-Collinear Effective Theory Nonperturbative Effects in Event Shapes from Soft-Collinear Effective Theory

2006-03-09

arxiv.org/abs/hep-ph/0603065v1

ECONFC0601121:T003,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages; to appear in the Proceedings of the FRIF Workshop on First Principles Non-Perturbative QCD of Hadron Jets (Paris, 12-

Scientific paper

Soft-collinear effective theory (SCET) is used to demonstrate factorization for event shape distributions in the two-jet region. The leading nonperturbative power corrections to these distributions can be characterized as shape functions defined in terms of Wilson lines of soft gluons. The relation of these results to the well-known predictions for shifts in the distributions induced by the leading power corrections is discussed.

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