The measurement of a Z boson together with a top quark pair in the four lepton channel is presented. The analysis uses the first data at $\sqrt{s}=$13 TeV collected by the ATLAS detector at the Large Hadron Collider in the year 2015.
The data sample corresponds to 3.2 fb$^{-1}$ of integrated luminosity.
The inclusive t\={t}Z cross section is extracted using a likelihood fit to signal and control regions in the three and four lepton channel, resulting in $\sigma _{\textit{t\={t}Z}} = 0.92 \pm 0.30 \mathrm{(stat.)} \pm 0.11 \mathrm{(syst.) pb}.$
Measurement of the ttZ cross section in the four lepton channel at 13 TeV with ATLAS
Full text:
pdf
Pre-published on:
October 26, 2016
Published on:
March 28, 2017
Abstract
DOI: https://doi.org/10.22323/1.276.0238
How to cite
Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.
Open Access
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.