Mullier, Geoffrey; Haug, Sigve; Weber, Michael; Meloni, Federico; Cervelli, Alberto; Beck, Hans Peter; Stucci, Stefania; Ereditato, Antonio (2016). Measurements of the charge asymmetry in top-quark pair production in the dilepton final state at √s=8 TeV with the ATLAS detector. Physical review. D - particles, fields, gravitation, and cosmology, D94(3), 032006. American Physical Society 10.1103/PhysRevD.94.032006
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1604.05538.pdf - Accepted Version Available under License Creative Commons: Attribution (CC-BY). Download (769kB) | Preview |
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PhysRevD.94.032006.pdf - Published Version Available under License Creative Commons: Attribution (CC-BY). Download (1MB) | Preview |
Measurements of the top--antitop quark pair production charge asymmetry in the dilepton channel, characterized by two high-pT leptons (electrons or muons), are presented using data corresponding to an integrated luminosity of 20.3 fb⁻¹ from pp collisions at a center-of-mass energy of √s=8 TeV collected with the ATLAS detector at the Large Hadron Collider at CERN. Inclusive and differential measurements as a function of the invariant mass, transverse momentum, and longitudinal boost of the tt system are performed both in the full phase space and in a fiducial phase space closely matching the detector acceptance. Two observables are studied: AℓℓC based on the selected leptons and AttC based on the reconstructed tt final state. The inclusive asymmetries are measured in the full phase space to be AℓℓC =0.008±0.006 and AttC =0.021±0.016 , which are in agreement with the Standard Model predictions of AℓℓC =0.0064±0.0003 and AttC =0.0111±0.0004 .
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
08 Faculty of Science > Physics Institute > Laboratory for High Energy Physics (LHEP) |
UniBE Contributor: |
Haug, Sigve, Weber, Michele, Beck, Hans Peter |
Subjects: |
500 Science > 530 Physics 500 Science > 510 Mathematics |
ISSN: |
1550-7998 |
Publisher: |
American Physical Society |
Language: |
English |
Submitter: |
Annette Krebs-Wegenast |
Date Deposited: |
07 Aug 2017 16:00 |
Last Modified: |
05 Dec 2022 15:05 |
Publisher DOI: |
10.1103/PhysRevD.94.032006 |
Additional Information: |
Kollaboration - Es sind nur die Berner Autoren namentlich erwähnt. |
BORIS DOI: |
10.7892/boris.99959 |
URI: |
https://boris.unibe.ch/id/eprint/99959 |
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