Advanced

Measurements of top-quark pair differential cross-sections in the eμ channel in pp collisions at √s=13 TeV using the ATLAS detector

Aaboud, M; Aad, G; Abdallah, J; Abdinov, O; Abeloos, B; Aben, R; Åkesson, Torsten LU ; Bocchetta, Simona LU ; BRYNGEMARK, LENE LU and Doglioni, Caterina LU , et al. (2017) In European Physical Journal C 77(5).
Abstract
This article presents measurements of tt¯ differential cross-sections in a fiducial phase-space region, using an integrated luminosity of 3.2 fb−1 of proton–proton data at a centre-of-mass energy of s√=13 TeV recorded by the ATLAS experiment at the LHC in 2015. Differential cross-sections are measured as a function of the transverse momentum and absolute rapidity of the top quark, and of the transverse momentum, absolute rapidity and invariant mass of the tt¯ system. The tt¯ events are selected by requiring one electron and one muon of opposite electric charge, and at least two jets, one of which must be tagged as containing a b-hadron. The measured differential cross-sections are compared to predictions of next-to-leading order generators... (More)
This article presents measurements of tt¯ differential cross-sections in a fiducial phase-space region, using an integrated luminosity of 3.2 fb−1 of proton–proton data at a centre-of-mass energy of s√=13 TeV recorded by the ATLAS experiment at the LHC in 2015. Differential cross-sections are measured as a function of the transverse momentum and absolute rapidity of the top quark, and of the transverse momentum, absolute rapidity and invariant mass of the tt¯ system. The tt¯ events are selected by requiring one electron and one muon of opposite electric charge, and at least two jets, one of which must be tagged as containing a b-hadron. The measured differential cross-sections are compared to predictions of next-to-leading order generators matched to parton showers and the measurements are found to be consistent with all models within the experimental uncertainties with the exception of the Powheg-Box+ Herwig++ predictions, which differ significantly from the data in both the transverse momentum of the top quark and the mass of the tt¯ system. (Less)
Please use this url to cite or link to this publication:
author
, et al. (More)
(Less)
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
European Physical Journal C
volume
77
issue
5
publisher
Springer
external identifiers
  • scopus:85019130124
ISSN
1434-6044
DOI
10.1140/epjc/s10052-017-4821-x
language
English
LU publication?
yes
id
26115438-4b53-4926-98f2-07d11c5ab150
alternative location
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85019130124&doi=10.1140%2fepjc%2fs10052-017-4821-x&partnerID=40&md5=0b614e43a2819e202800d520a3ce5c1e
date added to LUP
2017-06-12 09:07:55
date last changed
2017-06-18 05:06:32
@article{26115438-4b53-4926-98f2-07d11c5ab150,
  abstract     = {This article presents measurements of tt¯ differential cross-sections in a fiducial phase-space region, using an integrated luminosity of 3.2 fb−1 of proton–proton data at a centre-of-mass energy of s√=13 TeV recorded by the ATLAS experiment at the LHC in 2015. Differential cross-sections are measured as a function of the transverse momentum and absolute rapidity of the top quark, and of the transverse momentum, absolute rapidity and invariant mass of the tt¯ system. The tt¯ events are selected by requiring one electron and one muon of opposite electric charge, and at least two jets, one of which must be tagged as containing a b-hadron. The measured differential cross-sections are compared to predictions of next-to-leading order generators matched to parton showers and the measurements are found to be consistent with all models within the experimental uncertainties with the exception of the Powheg-Box+ Herwig++ predictions, which differ significantly from the data in both the transverse momentum of the top quark and the mass of the tt¯ system.},
  articleno    = {292},
  author       = {Aaboud, M and Aad, G and Abdallah, J and Abdinov, O and Abeloos, B and Aben, R and Åkesson, Torsten and Bocchetta, Simona and BRYNGEMARK, LENE and Doglioni, Caterina and Hedberg, Vincent and Jarlskog, Göran and Lytken, Else and Mjörnmark, Ulf and Smirnova, Oxana and , },
  issn         = {1434-6044},
  language     = {eng},
  number       = {5},
  publisher    = {Springer},
  series       = {European Physical Journal C},
  title        = {Measurements of top-quark pair differential cross-sections in the eμ channel in pp collisions at √s=13 TeV using the ATLAS detector},
  url          = {http://dx.doi.org/10.1140/epjc/s10052-017-4821-x},
  volume       = {77},
  year         = {2017},
}