Electroweak di-boson production in ATLAS

TL;DR

This paper reports on measurements of electroweak di-boson production processes at the LHC using ATLAS data, providing crucial insights into the Standard Model's electroweak sector and supporting Higgs searches.

Contribution

It presents new measurements of di-photon, WZ, Wγ, Zγ, and WW cross-sections at 7 TeV, enhancing understanding of electroweak interactions in proton-proton collisions.

Findings

Measured di-photon cross-section with 37 pb^{-1} data

Measured WZ production cross-section with 205 pb^{-1} data

Included previous measurements of Wγ, Zγ, and WW cross-sections

Abstract

In the LHC era, it is crucial to gain a good understanding of the electroweak sector of the Standard Model (SM). Determining the cross-sections of electroweak processes is therefore of great importance, both as prerequisites to Higgs-Boson searches as well as measurements in their own right. For this conference, several new measurements with the data from proton-proton collisions at \sqrt{s} = 7 TeV taken in 2010 and 2011 with the ATLAS detector have been prepared: A measurement of the isolated di-photon cross-section using 37 pb^{-1} collected in 2010 and a measurement of the WZ production cross-section using 205 pb^{-1} collected in 2011. In addition and for a complete view of the electroweak sector, the already published measurements of the W\gamma and Z\gamma cross-sections and the WW cross-sections are presented as well.