The University of Southampton
University of Southampton Institutional Repository

Measurement of the angular distribution of electrons from −→Weν decays observed in p¯p collisions at √s=1.8 TeV

Measurement of the angular distribution of electrons from −→Weν decays observed in p¯p collisions at √s=1.8 TeV
Measurement of the angular distribution of electrons from −→Weν decays observed in p¯p collisions at √s=1.8 TeV
We present the first measurement of the electron angular distribution parameter α2 in −→Weν events produced in proton-antiproton collisions as a function of the W boson transverse momentum. Our analysis is based on data collected using the DØ detector during the 1994–1995 Fermilab Tevatron run. We compare our results with next-to-leading order perturbative QCD, which predicts an angular distribution of (1±α1cosθ*+α2cos2θ*), where θ* is the polar angle of the electron in the Collins-Soper frame. In the presence of QCD corrections, the parameters α1 and α2 become functions of pWT, the W boson transverse momentum. This measurement provides a test of next-to-leading order QCD corrections which are a non-negligible contribution to the W boson mass measurement.
2470-0010
Abbott, B.
9d06072e-d002-47e9-a49b-d209a2c79e00
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3
DØ collaboration
Abbott, B.
9d06072e-d002-47e9-a49b-d209a2c79e00
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3

DØ collaboration (2001) Measurement of the angular distribution of electrons from −→Weν decays observed in p¯p collisions at √s=1.8 TeV. Physical Review D, 63, [072001]. (doi:10.1103/PhysRevD.63.072001).

Record type: Article

Abstract

We present the first measurement of the electron angular distribution parameter α2 in −→Weν events produced in proton-antiproton collisions as a function of the W boson transverse momentum. Our analysis is based on data collected using the DØ detector during the 1994–1995 Fermilab Tevatron run. We compare our results with next-to-leading order perturbative QCD, which predicts an angular distribution of (1±α1cosθ*+α2cos2θ*), where θ* is the polar angle of the electron in the Collins-Soper frame. In the presence of QCD corrections, the parameters α1 and α2 become functions of pWT, the W boson transverse momentum. This measurement provides a test of next-to-leading order QCD corrections which are a non-negligible contribution to the W boson mass measurement.

Full text not available from this repository.

More information

Published date: 5 March 2001
Organisations: Physics & Astronomy

Identifiers

Local EPrints ID: 411382
URI: http://eprints.soton.ac.uk/id/eprint/411382
ISSN: 2470-0010
PURE UUID: 0e2a44f4-d79d-4164-8995-97cfdbc00182
ORCID for Alexander Belyaev: ORCID iD orcid.org/0000-0002-1733-4408

Catalogue record

Date deposited: 19 Jun 2017 16:31
Last modified: 05 Nov 2019 01:46

Export record

Altmetrics

Contributors

Author: B. Abbott
Corporate Author: DØ collaboration

University divisions

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.

×