Enhanced Nonperturbative Effects in Z Decays to Hadrons

Details Enhanced Nonperturbative Effects in Z Decays to Hadrons Enhanced Nonperturbative Effects in Z Decays to Hadrons

2003-09-25

arxiv.org/abs/hep-ph/0309278v2

Phys.Rev. D70 (2004) 034014

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages. Paper reorganized, and more discussion and results included

Scientific paper

10.1103/PhysRevD.70.034014

We use soft collinear effective field theory (SCET) to study nonperturbative strong interaction effects in Z decays to hadronic final states that are enhanced in corners of phase space. These occur, for example, in the jet energy distribution for two jet events near E_J=M_Z/2, the thrust distribution near unity and the jet invariant mass distribution near zero. The extent to which such nonperturbative effects for different observables are related is discussed.

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