Measurement of W /- Z production cross sections and gauge boson polarisation in pp collisions at root s=13 TeV with the ATLAS detector

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F19%3A73596250" target="_blank" >RIV/61989592:15310/19:73596250 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21220/19:00339231 RIV/68407700:21340/19:00339231 RIV/68407700:21670/19:00339231 RIV/00216208:11320/19:10407634
Result on the web
<a href="https://link.springer.com/content/pdf/10.1140%2Fepjc%2Fs10052-019-7027-6.pdf" target="_blank" >https://link.springer.com/content/pdf/10.1140%2Fepjc%2Fs10052-019-7027-6.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epjc/s10052-019-7027-6" target="_blank" >10.1140/epjc/s10052-019-7027-6</a>

Result language
angličtina
Original language name
Measurement of W /- Z production cross sections and gauge boson polarisation in pp collisions at root s=13 TeV with the ATLAS detector
Original language description
This paper presents measurements of W +/- Z production cross sections in pp collisions at a centre-of-mass energy of 13TeV. The data were collected in 2015 and 2016 by the ATLAS experiment at the Large Hadron Collider, and correspond to an integrated luminosity of 36.1fb-1. The W +/- Z candidate events are reconstructed using leptonic decay modes of the gauge bosons into electrons and muons. The measured inclusive cross section in the detector fiducial region for a single leptonic decay mode is sigma W +/- Zfid.=63.7fb, reproduced by the next-to-next-to-leading-order Standard Model prediction of 61.5-1.3+1.4fb. Cross sections for W+Z and W-Z production and their ratio are presented as well as differential cross sections for several kinematic observables. An analysis of angular distributions of leptons from decays of W and Z bosons is performed for the first time in pair-produced events in hadronic collisions, and integrated helicity fractions in the detector fiducial region are measured for the W and Z bosons separately. Of particular interest, the longitudinal helicity fraction of pair-produced vector bosons is also measured.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10303 - Particles and field physics

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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