Electroweak corrections to hadronic event shapes and jet production in e+e− annihilation

2010/03/04 by Ansgar Denner, S. Dittmaier, Stefan Dittmaier +3 · 1 citation
Computer Science · Physics and Astronomy · #Annihilation #Astrophysics #Computational Physics and Python Applications #Electron–positron annihilation #Electroweak interaction #Event (particle physics) #Hadron #High-Energy Particle Collisions Research #Jet (fluid) #Mechanics #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Production (economics) #hep-ph

paper · pdf · doi:10.1016/j.nuclphysb.2010.04.009

published as Nucl.Phys.B836:37-90,2010 · 47 pages, 20 figures

arxiv created 2010/03/04 · openalex publication_date 2010/04/10 · arxiv updated 2014/11/20 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We present a complete calculation of the electroweak O(α3αs) corrections to three-jet production and related event-shape observables at electron–positron colliders. The Z-boson resonance is described within the complex-mass scheme, rendering the calculation valid both in the resonance and off-shell regions. Higher-order initial-state radiation is included in the leading-logarithmic approximation. We properly account for the corrections to the total hadronic cross section and for the experimental photon isolation criteria. To this end we implement contributions of the quark-to-photon fragmentation function both in the slicing and subtraction formalism. The effects of the electroweak corrections on various event-shape distributions and on the three-jet rate are studied. They are typically at the few-percent level, and remnants of the radiative return are found even after inclusion of appropriate cuts.

Citations

• Review of Particle Physics
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• Reduction of one-loop tensor 5-point integrals
• Power corrections to event shape distributions
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• The infrared divergence phenomena and high-energy processes
• Next-to-Next-to-Leading Order Corrections to Three-Jet Observables in Electron-Positron Annihilation
• Event shapes and jet rates in electron-positron annihilation at NNLO
• Isolated Photons in Deep Inelastic Scattering
• Moments of event shapes in electron-positron annihilation at next-to-next-to-leading order
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• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
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Cited by

• Low-virtuality photon transitions γ⁎→ff¯ and the photon-to-jet conversion function