Measurement of the ttZ¯ and ttW¯ production cross sectionsin multilepton final states using 3.2 fb−1 of pp collisions at √s = 13 TeV with the ATLAS detector

ATLAS Collaboration

doi:10.1140/epjc/s10052-016-4574-y

Measurement of the ttZ¯ and ttW¯ production cross sectionsin multilepton final states using 3.2 fb⁻¹ of pp collisions at √s = 13 TeV with the ATLAS detector

ATLAS Collaboration

Physics and Astronomy

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Abstract

A measurement of the ttZ¯ and ttW¯ 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 σttZ¯ = 0.9 ± 0.3 pb and σttW¯ = 1.5 ± 0.8 pb, in agreement with the Standard Model predictions.

Original language	English
Article number	40
Journal	European Physical Journal C
Volume	77
Early online date	20 Jan 2017
DOIs	https://doi.org/10.1140/epjc/s10052-016-4574-y
Publication status	Published - Jan 2017

Bibliographical note

25 pages, plus author list - 42 pages in total, 8 figures, 5 tables. Published in Eur. Phys. J. C. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/TOPQ-2015-22/

Keywords

hep-ex

Access to Document

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Licence: Creative Commons: Attribution (CC BY)

Cite this

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title = "Measurement of the ttZ¯ and ttW¯ production cross sectionsin multilepton final states using 3.2 fb−1 of pp collisions at √s = 13 TeV with the ATLAS detector",

abstract = "A measurement of the ttZ¯ and ttW¯ 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 σttZ¯ = 0.9 ± 0.3 pb and σttW¯ = 1.5 ± 0.8 pb, in agreement with the Standard Model predictions.",

keywords = "hep-ex",

author = "{ATLAS Collaboration} and Paul Newman",

note = "25 pages, plus author list - 42 pages in total, 8 figures, 5 tables. Published in Eur. Phys. J. C. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/TOPQ-2015-22/",

year = "2017",

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doi = "10.1140/epjc/s10052-016-4574-y",

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volume = "77",

journal = "European Physical Journal C",

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TY - JOUR

T1 - Measurement of the ttZ¯ and ttW¯ production cross sectionsin multilepton final states using 3.2 fb−1 of pp collisions at √s = 13 TeV with the ATLAS detector

AU - ATLAS Collaboration

AU - Newman, Paul

N1 - 25 pages, plus author list - 42 pages in total, 8 figures, 5 tables. Published in Eur. Phys. J. C. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/TOPQ-2015-22/

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N2 - A measurement of the ttZ¯ and ttW¯ 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 σttZ¯ = 0.9 ± 0.3 pb and σttW¯ = 1.5 ± 0.8 pb, in agreement with the Standard Model predictions.

AB - A measurement of the ttZ¯ and ttW¯ 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 σttZ¯ = 0.9 ± 0.3 pb and σttW¯ = 1.5 ± 0.8 pb, in agreement with the Standard Model predictions.

KW - hep-ex

U2 - 10.1140/epjc/s10052-016-4574-y

DO - 10.1140/epjc/s10052-016-4574-y

M3 - Article

SN - 1434-6044

VL - 77

JO - European Physical Journal C

JF - European Physical Journal C

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ER -