Combination of inclusive and differential tt̅ charge asymmetry measurements using ATLAS and CMS data at √s = 7 and 8 TeV

Rimoldi, Marco; Mullier, Geoffrey; Miucci, Antonio; Merlassino, Claudia; Haug, Sigve; Weber, Michael; Meloni, Federico; Beck, Hans Peter; Ereditato, Antonio (2018). Combination of inclusive and differential tt̅ charge asymmetry measurements using ATLAS and CMS data at √s = 7 and 8 TeV. Journal of High Energy Physics, 2018(4) Springer 10.1007/JHEP04(2018)033

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This paper presents combinations of inclusive and differential measurements of the charge asymmetry (AC) in top quark pair (tt̅ ) events with a lepton+jets signature by the ATLAS and CMS Collaborations, using data from LHC proton-proton collisions at centre-of-mass energies of 7 and 8 TeV. The data correspond to integrated luminosities of about 5 and 20 fb⁻¹ for each experiment, respectively. The resulting combined LHC measurements of the inclusive charge asymmetry are ALHC7C = 0.0050±0.007 (stat) ± 0.006 (syst) at 7 TeV and ALHC8 C = 0.0055 ± 0.0023 (stat) ± 0.0025 (syst) at 8 TeV. These values, as well as the combination of AC measurements as a function of the invariant mass of the tt̅ system at 8 TeV, are consistent with the respective standard model predictions.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Physics Institute > Laboratory for High Energy Physics (LHEP)

UniBE Contributor:

Haug, Sigve; Weber, Michael and Beck, Hans Peter

Subjects:

500 Science > 530 Physics

ISSN:

1029-8479

Publisher:

Springer

Language:

English

Submitter:

BORIS Import LHEP

Date Deposited:

27 Jun 2019 16:15

Last Modified:

23 Oct 2019 15:26

Publisher DOI:

10.1007/JHEP04(2018)033

ArXiv ID:

1709.05327

Additional Information:

Kollaboration - Es sind nur die Berner Autoren namentlich erwaehnt

BORIS DOI:

10.7892/boris.129111

URI:

https://boris.unibe.ch/id/eprint/129111

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