| Article | |
| Report number | arXiv:1905.03995 ; IFIRSE-TH-2019-2 |
| Title | Polarisation at NLO in $WZ$ production at the LHC |
| Author(s) | Baglio, Julien (Tubingen U. ; IFIRSE, Quy Nhon) ; Ninh, Le Duc (IFIRSE, Quy Nhon) |
| Publication | 2019 |
| Imprint | 2019-05-10 |
| Number of pages | 6 |
| Note | 6 pages, 2 figures, 2 tables. Contribution to the proceedings of the 54th Rencontres de Moriond, EW interactions and unified theory, March 16-23 2019, La Thuile, Italy |
| In: | 54th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, Italy, 16 - 23 Mar 2019, pp.47-52 |
| Subject category | hep-ex ; Particle Physics - Experiment ; hep-ph ; Particle Physics - Phenomenology |
| Accelerator/Facility, Experiment | CERN LHC |
| Abstract | The pair production of a $W$ and a $Z$ boson at the LHC is an important process to study the triple-gauge boson couplings as well as to probe new physics that could arise in the gauge sector. In particular the leptonic channel $p p \to W^\pm Z\to 3\ell +\nu + X$ is considered by ATLAS and CMS collaborations. Polarisation observables can help pinning down new physics and give information on the spin of the gauge bosons. Measuring them requires high statistics as well as precise theoretical predictions. We define in this contribution fiducial polarisation observables for the $W$ and $Z$ bosons and we present theoretical predictions in the Standard Model at next-to-leading order (NLO) including QCD as well as NLO electroweak corrections, the latter in the double-pole approximation. We also show that this approximation works remarkably well for $W^\pm Z$ production at the LHC by comparing to the full results. |
| Copyright/License | preprint: (License: arXiv nonexclusive-distrib 1.0) publication: © Published by ARISF, 2019 |
Corresponding record in: Inspire
Element opprettet 2021-03-08, sist endret 2022-01-14
