ATLAS, Collaboration; Beck, Hans Peter; Cervelli, Alberto; Ereditato, Antonio; Haug, Sigve; Kabana, Sonja; Meloni, Federico; Mullier, Geoffrey André Adrien; Pretzl, Klaus-Peter; Stramaglia, Maria Elena; Stucci, Stefania; Weber, Michael (2015). Measurement of the top pair production cross-section in 8 TeV proton-proton collisions using kinematic information in the lepton+jets final state with ATLAS. Physical review. D - particles, fields, gravitation, and cosmology, D91(11), p. 112013. American Physical Society 10.1103/PhysRevD.91.112013
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A measurement is presented of the tt ¯ inclusive production cross-section in pp collisions at a center-of-mass energy of √s =8 TeV using data collected by the ATLAS detector at the CERN Large Hadron Collider. The measurement was performed in the lepton+jets final state using a data set corresponding to an integrated luminosity of 20.3 fb¯¹. The cross-section was obtained using a likelihood discriminant fit and b -jet identification was used to improve the signal-to-background ratio. The inclusive tt ¯ production cross-section was measured to be 260±1(stat.) +22 −23 (syst.)±8(lumi.)±4(beam) pb assuming a top-quark mass of 172.5 GeV, in good agreement with the theoretical prediction of 253 +13 −15 pb. The tt ¯ →(e,μ)+jets production cross-section in the fiducial region determined by the detector acceptance is also reported.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC) 08 Faculty of Science > Physics Institute > Laboratory for High Energy Physics (LHEP) |
UniBE Contributor: |
Beck, Hans Peter, Cervelli, Alberto, Ereditato, Antonio, Haug, Sigve, Meloni, Federico, Mullier, Geoffrey André Adrien, Pretzl, Klaus-Peter, Stramaglia, Maria Elena, Stucci, Stefania, Weber, Michele |
Subjects: |
500 Science > 530 Physics |
ISSN: |
1550-7998 |
Publisher: |
American Physical Society |
Language: |
English |
Submitter: |
Annette Krebs-Wegenast |
Date Deposited: |
07 Sep 2016 13:45 |
Last Modified: |
05 Dec 2022 14:58 |
Publisher DOI: |
10.1103/PhysRevD.91.112013 |
ArXiv ID: |
1504.04251 |
Additional Information: |
Kollaboration - Es sind nur die Berner Autoren namentlich erwähnt |
BORIS DOI: |
10.7892/boris.87634 |
URI: |
https://boris.unibe.ch/id/eprint/87634 |
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