Journal article
Measurement of the tt¯Ztt¯Z and tt¯Wtt¯W production cross sections in multilepton final states using 3.2 fb−1 of pppp collisions at s√ = 13 TeV with the ATLAS detector
The European Physical Journal C, Vol.77(1), 40
01/01/2017
DOI: 10.1140/epjc/s10052-016-4574-y
Appears in Diamond Open Access
Abstract
A measurement of the tt¯Z and tt¯W production cross sections in final states with either two same-charge muons, or three or four leptons (electrons or muons) is presented. The analysis uses a data sample of proton–proton collisions at s√=13 TeV recorded with the ATLAS detector at the Large Hadron Collider in 2015, corresponding to a total integrated luminosity of 3.2 fb−1. The inclusive cross sections are extracted using likelihood fits to signal and control regions, resulting in σtt¯Z=0.9±0.3 pb and σtt¯W=1.5±0.8 pb, in agreement with the Standard Model predictions.
Details
- Title: Subtitle
- Measurement of the tt¯Ztt¯Z and tt¯Wtt¯W production cross sections in multilepton final states using 3.2 fb−1 of pppp collisions at s√ = 13 TeV with the ATLAS detector
- Creators
- K HaraS. H Kim - University of Iowa, IIHR--Hydroscience and EngineeringH OkawaK SatoF UkegawaATLAS Collaboration
- Contributors
- U Mallik (Contributor) - University of Iowa, Physics and Astronomy
- Resource Type
- Journal article
- Publication Details
- The European Physical Journal C, Vol.77(1), 40
- DOI
- 10.1140/epjc/s10052-016-4574-y
- ISSN
- 1434-6044
- Publisher
- Springer Berlin Heidelberg
- Language
- English
- Date published
- 01/01/2017
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984199731002771
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