The University of Southampton
University of Southampton Institutional Repository

Weak corrections to three-jet production in electron positron annihilations, 1. The factorisable contributions

Weak corrections to three-jet production in electron positron annihilations, 1. The factorisable contributions
Weak corrections to three-jet production in electron positron annihilations, 1. The factorisable contributions
We report on the calculation of the factorisable one-loop weak-interaction corrections to the initial and final states for three-jet observables in electron-positron annihilations. We show that such corrections are of a few percent at s1/2 = MZ. Hence, while their impact is not dramatic in the context of LEP1 and SLC, where the total error on the measured value of ?S is larger, at a future Linear Collider, running at the Z mass peak (e.g., GigaZ), they ought to be taken into account in the experimental fits, as here the uncertainty on the value of the strong coupling constant is expected to be at the 0.1% level or even smaller. The calculation has been performed using helicity amplitudes so that it can be applied to the case of polarised beams.
standard model, qcd, nlo computations, jets
1-21
Maina, Ezio
edb271d2-833f-4b90-8be0-9c21a13e93c0
Moretti, Stefano
b57cf0f0-4bc3-4e02-96e3-071255366614
Ross, Douglas A.
eb79bbfe-fb97-4bb3-813c-98f278e5a55f
Maina, Ezio
edb271d2-833f-4b90-8be0-9c21a13e93c0
Moretti, Stefano
b57cf0f0-4bc3-4e02-96e3-071255366614
Ross, Douglas A.
eb79bbfe-fb97-4bb3-813c-98f278e5a55f

Maina, Ezio, Moretti, Stefano and Ross, Douglas A. (2003) Weak corrections to three-jet production in electron positron annihilations, 1. The factorisable contributions. Journal of High Energy Physics, 4 (56), 1-21. (doi:10.1088/1126-6708/2003/04/056).

Record type: Article

Abstract

We report on the calculation of the factorisable one-loop weak-interaction corrections to the initial and final states for three-jet observables in electron-positron annihilations. We show that such corrections are of a few percent at s1/2 = MZ. Hence, while their impact is not dramatic in the context of LEP1 and SLC, where the total error on the measured value of ?S is larger, at a future Linear Collider, running at the Z mass peak (e.g., GigaZ), they ought to be taken into account in the experimental fits, as here the uncertainty on the value of the strong coupling constant is expected to be at the 0.1% level or even smaller. The calculation has been performed using helicity amplitudes so that it can be applied to the case of polarised beams.

This record has no associated files available for download.

More information

Published date: 2003
Keywords: standard model, qcd, nlo computations, jets

Identifiers

Local EPrints ID: 57435
URI: http://eprints.soton.ac.uk/id/eprint/57435
PURE UUID: 81b2c5f0-a7ec-41c4-ad85-9c2b6dfd4f06
ORCID for Stefano Moretti: ORCID iD orcid.org/0000-0002-8601-7246

Catalogue record

Date deposited: 14 Aug 2008
Last modified: 16 Mar 2024 03:34

Export record

Altmetrics

Contributors

Author: Ezio Maina
Author: Stefano Moretti ORCID iD
Author: Douglas A. Ross

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×