Measurements of top-quark pair differential cross-sections in the e[my] channel in pp collisions at √s = 13 TeV using the ATLAS detector
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 measur...
Gespeichert in:
| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Körperschaft: | |
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
08 May 2017
|
| In: |
The European physical journal. C, Particles and fields
Year: 2017, Jahrgang: 77, Heft: 5 |
| ISSN: | 1434-6052 |
| DOI: | 10.1140/epjc/s10052-017-4821-x |
| Online-Zugang: | Verlag, Volltext: https://doi.org/10.1140/epjc/s10052-017-4821-x Verlag: https://link.springer.com/article/10.1140/epjc/s10052-017-4821-x |
| Verfasserangaben: | ATLAS Collaboration* |
| Zusammenfassung: | 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. |
|---|---|
| Beschreibung: | Gesehen am 30.01.2020 Im Titel steht "s" unter dem Wurzelzeichen Im Titel ist "my" als griechischer Buchstabe dargestellt *ATLAS Collaboration: M. Aaboud, C.F. Anders, V. Andrei, C. Antel, A.E. Baas, O. Brandt, J.J. Djuvsland, M. Dunford, D.E. Ferreira de Lima, M.P. Geisler, M. Giulini, P. Hanke, J. Jongmanns, E.-E. Kluge, M. Kolb, M. Kretz, A. Kugel, V.S. Lang, M. Lisovyi, K. Meier, H. Meyer zu Theenhausen, D.I. Narrias Villar, M. Sahinsoy, S. Schaetzel, V. Scharf, A. Schoening, H.-C. Schultz-Coulon, D. Sosa, R. Stamen, P. Starovoitov, S. Suchek, M. Wessels [und 2825 weitere Personen] |
| Beschreibung: | Online Resource |
| ISSN: | 1434-6052 |
| DOI: | 10.1140/epjc/s10052-017-4821-x |