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Measurement of the tt¯W and tt¯Z production cross sections in multilepton final states using 3.2 fb-¹ of pp collisions at sv = 13 TeV with the ATLAS detector

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Version 2 2023-06-12, 08:37
Version 1 2023-06-09, 04:50
journal contribution
posted on 2023-06-12, 08:37 authored by Benedict AllbrookeBenedict Allbrooke, Lily AsquithLily Asquith, Alessandro CerriAlessandro Cerri, C A Chavez Barajas, Antonella De SantoAntonella De Santo, Fabrizio SalvatoreFabrizio Salvatore, I Santoyo Castillo, K Suruliz, Mark SuttonMark Sutton, Iacopo Vivarelli, The ATLAS Collaboration
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 v =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 s tt¯Z =0.9±0.3 pb and s tt¯W =1.5±0.8 pb, in agreement with the Standard Model predictions.

Funding

STFC Consolidated Grant Supplement; G1316; STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCIL; ST/M000753/1

History

Publication status

  • Published

File Version

  • Published version

Journal

European Physical Journal C: Particles and Fields

ISSN

1434-6044

Publisher

Springer Verlag

Issue

1

Volume

77

Page range

1-29

Article number

a40

Department affiliated with

  • Physics and Astronomy Publications

Research groups affiliated with

  • Experimental Particle Physics Research Group Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2017-01-20

First Open Access (FOA) Date

2017-01-20

First Compliant Deposit (FCD) Date

2017-01-20

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