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## Rivet analyses reference

### ATLAS_2016_I1449082

Charge asymmetry in top quark pair production in dilepton channel
Experiment: ATLAS (LHC)
Inspire ID: 1449082
Status: VALIDATED
Authors:
• Roman Lysak
References:
Beams: p+ p+
Beam energies: (4000.0, 4000.0) GeV
Run details:
• pp --> top + antitop events at 8 TeV

Measurements of the top-antitop quark pair production charge asymmetry in the dilepton channel are presented using data corresponding to an integrated luminosity of $20.3\;\text{fb}^{-1}$ from $pp$ collisions at a center-of-mass energy of $\sqrt{s} = 8$ TeV collected with the ATLAS detector at the Large Hadron Collider at CERN. Inclusive and differential measurements as a function of the invariant mass, transverse momentum, and longitudinal boost of the $t\bar{t}$ system are performed both in the full phase space and in a fiducial phase space closely matching the detector acceptance (at least 2 leptons and 2 jets with $p_\text{T} > 25$ GeV and $|\eta| < 2.5$). Two observables are studied: $A_C^{\ell\ell}$ based on the selected leptons and $A_C^{t\bar{t}}$ based on the reconstructed $t\bar{t}$ final state. The unfolded distributions of $\Delta|\eta| = |\eta|_{\ell^+} - |\eta|_{\ell^-}$ and $\Delta|y| = |y|_\text{top} - |y|_\text{antitop}$ are provided. USERS SHOULD NOTE THAT EXPLICIT RECONSTRUCTION OF INDIVIDUAL STANDARD MODEL NEUTRINOS IS USED IN THIS ANALYSIS ROUTINE TO MATCH THE MONTE-CARLO-BASED CORRECTION TO THE FIDUCIAL REGION APPLIED IN THE PAPER.

Source code: ATLAS_2016_I1449082.cc