Measurement of the t(t)over-barZ and t(t)over-barW production cross sections in multilepton final states using 3.2 fb(-1) of pp collisions at root s=13 TeV with the ATLAS detector
Number of Authors: 2861
2017 (English)In: European Physical Journal C, ISSN 1434-6044, E-ISSN 1434-6052, Vol. 77, no 1, 40Article in journal (Refereed) Published
A measurement of the t (t) over barZ and t (t) over barW 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 root s = 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 sigma(t (t) over barZ) = 0.9 +/- 0.3 pb and sigma(t (t) over barW) = 1.5 +/- 0.8 pb, in agreement with the Standard Model predictions.
Place, publisher, year, edition, pages
Springer, 2017. Vol. 77, no 1, 40
IdentifiersURN: urn:nbn:se:kth:diva-204417DOI: 10.1140/epjc/s10052-016-4574-yISI: 000393665500001PubMedID: 28260981ScopusID: 2-s2.0-85011866957OAI: oai:DiVA.org:kth-204417DiVA: diva2:1084469
QC 201703242017-03-242017-03-242017-03-24Bibliographically approved