Details

Autor(en) / Beteiligte

• Aad, Georges
• Abbott, Brad
• Abbott, Dale C
• Abed Abud, Adam
• Abeling, Kira
• Abhayasinghe, Deshan Kavishka
• Abidi, Syed Haider
• AbouZeid, Ossama Sherif Alexander
• Abraham, Nadine L
• Abramowicz, Halina
• Bjørke, Kristian
• Bugge, Magnar Kopangen
• Cameron, David Gordon
• Catmore, James Richard
• Garonne, Vincent
• Gramstad, Eirik
• Hellesund, Simen
• Morisbak, Vanja
• Oppen, Henrik
• Ould-Saada, Farid
• Pedersen, Maiken
• Read, Alexander Lincoln
• Rye, Eli Bæverfjord
• Røhne, Ole Myren
• Sandaker, Heidi
• Vadla, Knut Oddvar Høie
• Buanes, Trygve
• Djuvsland, Julia Isabell
• Eigen, Gerald
• Fomin, Nikolai
• Latour, Bertrand Pascal Christian
• Lee, Graham Richard
• Lipniacka, Anna
• Stugu, Bjarne Sandvik
• Træet, Are Sivertsen
• Abreu, Henso
• Abulaiti, Yiming
• Acharya, Bobby S
• Achkar, Baida
• Adam, Lennart
• Adam-Bourdarios, Claire
• Adamczyk, Leszek
• Adamek, Lukas
• Adelman, Jareed
• Adersberger, Michael
• Adigüzel, Aytül
• Adye, Tim
• Affolder, Anthony Allen
• Afik, Yoav
• Agapopoulou, Christina
• ATLAS, Collaboration

Titel

Measurement of single top-quark production in association with a W boson in the single-lepton channel at √s = 8 TeV with the ATLAS detector

Ist Teil von

• The European physical journal. C, Particles and fields, 2021, Vol.81 (8)

Erscheinungsjahr

2021

Quelle

SpringerLink

Beschreibungen/Notizen

• The production cross-section of a top quark in association with a W boson is measured using proton–proton collisions at s√=8TeV. The dataset corresponds to an integrated luminosity of 20.2fb−1, and was collected in 2012 by the ATLAS detector at the Large Hadron Collider at CERN. The analysis is performed in the single-lepton channel. Events are selected by requiring one isolated lepton (electron or muon) and at least three jets. A neural network is trained to separate the tW signal from the dominant tt¯ background. The cross-section is extracted from a binned profile maximum-likelihood fit to a two-dimensional discriminant built from the neural-network output and the invariant mass of the hadronically decaying W boson. The measured cross-section is σtW=26±7pb, in good agreement with the Standard Model expectation.