Measurements of top-quark pair differential cross-sections in the eμ channel in pp collisions at √s=13 TeV using the ATLAS detector
(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)
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- publishing date
- 2017
- type
- Contribution to journal
- publication status
- published
- subject
- in
- European Physical Journal C
- volume
- 77
- issue
- 5
- article number
- 292
- publisher
- Springer
- external identifiers
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- pmid:28579920
- scopus:85019130124
- ISSN
- 1434-6044
- DOI
- 10.1140/epjc/s10052-017-4821-x
- language
- English
- LU publication?
- yes
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- Export Date: 12 June 2017
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- 26115438-4b53-4926-98f2-07d11c5ab150
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- 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
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- 2023-04-07 17:21:49
@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.}}, 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}}, 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}}, doi = {{10.1140/epjc/s10052-017-4821-x}}, volume = {{77}}, year = {{2017}}, }