Improving jet distributions with effective field theory

Abstract

We obtain perturbative expressions for jet distributions using soft-collinear effective theory (SCET). By matching SCET onto QCD at high energy, tree level matrix elements and higher order virtual corrections can be reproduced in SCET. The resulting operators are then evolved to lower scales, with additional operators being populated by required threshold matchings in the effective theory. We show that the renormalization group evolution and threshold matchings reproduce the Sudakov factors and splitting functions of QCD, and that the effective theory naturally combines QCD matrix elements and parton showers. The effective theory calculation is systematically improvable and any higher order perturbative effects can be included by a well defined procedure.

4 pages, 1 figure; typos corrected and notation updated to match hep-ph/0607296

References in corpus (1)

• PYTHIA 6.4 Physics and Manual

Cited by in corpus (13)

• The Zero-Bin and Mode Factorization in Quantum Field Theory
• Momentum Flow Correlations from Event Shapes: Factorized Soft Gluons and Soft-Collinear Effective Theory
• Factorization of e+e- Event Shape Distributions with Hadronic Final States in Soft Collinear Effective Theory
• Resummation and NLO Matching of Event Shapes with Effective Field Theory
• Electroweak Corrections in High Energy Processes using Effective Field Theory
• Electroweak Sudakov Corrections using Effective Field Theory
• Electroweak Corrections using Effective Field Theory: Applications to the LHC
• Reparameterization Invariant Collinear Operators
• Resummed Cross Section for Jet Production at Hadron Colliders
• Event Generation from Effective Field Theory
• GenEvA (I): A new framework for event generation
• Jets in Effective Theory: Summing Phase Space Logs
• Gaining analytic control of parton showers