2002/12/31 by C. Bauer, Christian W. Bauer, Aneesh V. Manohar +1
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1103/physrevlett.91.122001
published as Phys.Rev.Lett. 91 (2003) 122001 · Significant changes made. The first moment does not vanish--the paper has been modified to reflect this. Relations between different numbers of jets still hold
arxiv created 2003/03/11 · openalex publication_date 2003/09/15 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We consider the triple differential distribution d\ensuremathΓ/dEJdmJ2d\ensuremathΩJ for two-jet events at center of mass energy M, smeared over the end-point region mJ2\ensuremath≪M2, |2EJ\ensuremath-M|\ensuremath∼\ensuremathΔ, \ensuremathΛQCD\ensuremath≪\ensuremathΔ\ensuremath≪M. The leading nonperturbative correction, suppressed by \ensuremathΛQCD/\ensuremathΔ, is given by the matrix element of a single operator. A similar analysis is performed for three-jet events, and the generalization to any number of jets is discussed. At order \ensuremathΛQCD/\ensuremathΔ, nonperturbative effects in four or more jet events are completely determined in terms of two matrix elements which can be measured in two- and three-jet events.