UNIGE document Scientific Article
previous document  unige:89832  next document
add to browser collection
Title

Addendum to ‘Measurement of the tt¯ production cross-section using eμ events with b -tagged jets in pp collisions at s = 7 and 8 TeV with the ATLAS detector’

CollaborationWith : Alexandre, Gauthier / Ancu, Lucian Stefan / Barone, Gaetano / Bell, Paul / Bell, William / Benhar Noccioli, Eleonora / Bilbao De Mendizabal, Javier / Bucci, Francesca / Camacho Toro, Reina / Clark, Allan Geoffrey / Delitzsch, Chris Malena / Della Volpe, Domenico / Doglioni, Caterina / Ferrere, Didier / Gadomski, Szymon / Gonzalez Sevilla, Sergio / Goulette, Marc / Gramling, Johanna Léna / Guescini, Francesco / Iacobucci, Giuseppe / Katre, Akshay / La Rosa, Alessandro / Mermod, Philippe / Miucci, Antonio / Muenstermann, Daniel / Nektarijevic, Snezana / Nikolics, Katalin / Picazio, Attilio / Pohl, Martin / Rosbach, Kilian / Tykhonov, Andrii / Vallecorsa, Sofia / Wu, Xin
Published in European Physical Journal. C. 2016, vol. 76, no. 11, p. 642
Collection SCOAP3
Abstract The ATLAS measurement of the inclusive top quark pair ( tt¯ ) cross-section σtt¯ in proton–proton collisions at s=8 TeV has been updated using the final 2012 luminosity calibration. The updated cross-section result is: σtt¯=242.9±1.7±5.5±5.1±4.2pb, where the four uncertainties arise from data statistics, experimental and theoretical systematic effects, knowledge of the integrated luminosity and of the LHC beam energy. The result is consistent with theoretical QCD calculations at next-to-next-to-leading order. The measurement of the ratio of tt¯ cross-sections at s=8 TeV and s=7 TeV , and the s=8 TeV fiducial measurement corresponding to the experimental acceptance of the leptons, have also been updated.
Identifiers
Full text
Article (Published version) (1.3 MB) - public document Free access
Structures
Citation
(ISO format)
ATLAS COLLABORATION. Addendum to ‘Measurement of the tt¯ production cross-section using eμ events with b -tagged jets in pp collisions at s = 7 and 8 TeV with the ATLAS detector’. In: European Physical Journal. C, 2016, vol. 76, n° 11, p. 642. https://archive-ouverte.unige.ch/unige:89832

57 hits

12 downloads

Update

Deposited on : 2016-12-05

Export document
Format :
Citation style :