Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-34338
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.
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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.
Electroweak corrections to hadronic event shapes and jet production in e+e‑ annihilation
Denner, Ansgar; Dittmaier, Stefan; Gehrmann, Thomas; Kurz, Christian
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)
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|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||07 Faculty of Science > Physics Institute|
|Deposited On:||02 Mar 2011 14:14|
|Last Modified:||02 Jul 2014 08:36|
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