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

Denner, A; Dittmaier, S; Gehrmann, T; Kurz, C (2010). Electroweak corrections to hadronic event shapes and jet production in e+e− annihilation. Nuclear Physics. Section B, 836(1-2):37-90.

Abstract

We present a complete calculation of the electroweak O(α3α) 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.

Title:
Electroweak corrections to hadronic event shapes and jet production in e+e‑ annihilation
Authors:
Denner, Ansgar; Dittmaier, Stefan; Gehrmann, Thomas; Kurz, Christian
Affiliation:
AA(Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland), AB(Physikalisches Institut, Albert-Ludwigs-Universität Freiburg, D-79104 Freiburg, Germany), AC(Institut für Theoretische Physik, Universität Zürich, CH-8057 Zürich, Switzerland), AD(Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland; Institut für Theoretische Physik, Universität Zürich, CH-8057 Zürich, Switzerland)

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Scopus Subject Areas:Physical Sciences > Nuclear and High Energy Physics
Language:English
Date:2010
Deposited On:02 Mar 2011 14:14
Last Modified:04 Jun 2025 01:37
Publisher:Elsevier
ISSN:0550-3213
OA Status:Green
Publisher DOI:https://doi.org/10.1016/j.nuclphysb.2010.04.009
Related URLs:http://arxiv.org/abs/1003.0986
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