Abstract

We study polarisation of W-bosons produced in association with one jet at the LHC. In particular, we provide all necessary theoretical ingredients for the precise extraction of polarisation fractions. To that end, we present new polarised predictions up to NNLO QCD accuracy employing the narrow-width approximation, in two phase spaces: inclusive and fiducial. We compare results in the fiducial phase space to a full off-shell computation as well as experimental data. Finally, we fit the polarisation fractions using shape templates and show that NNLO corrections significantly improve their determination.

Details

Title
Polarised W+j production at the LHC: a study at NNLO QCD accuracy
Author
Pellen, Mathieu 1   VIAFID ORCID Logo  ; Poncelet, Rene 2   VIAFID ORCID Logo  ; Popescu, Andrei 2   VIAFID ORCID Logo 

1  Physikalisches Institut, Universität Freiburg, Freiburg, Germany (GRID:grid.5963.9) 
2  University of Cambridge, Cavendish Laboratory, Cambridge, United Kingdom (GRID:grid.5335.0) (ISNI:0000000121885934) 
Pages
160
Publication year
2022
Publication date
Feb 2022
Publisher
Springer Nature B.V.
e-ISSN
10298479
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1007/JHEP02(2022)160
ProQuest document ID
2630745441
Copyright
© The Author(s) 2022. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.