##### Differential distributions for top-pair production in NNLO QCD + NLO EW

- LHC13-ttbar-CMS_bin-ancillary-files (m
_{top}=173.3 GeV) and the corresponding plots - LHC13-ttbar-CMS_bin-ancillary-files (m
_{top}=172.5 GeV) - Plots that compare the above two calculations and show the m
_{top}sensitivity. Used LUXQED17 pdf set (same conclusions with NNPDF31)

Electronic files with LHC 13 TeV predictions for specific CMS bins (unpublished) for 3 pdf sets (LUXqed, LUXqed17 and NNPDF3.1). Results for all 7 scale combinations and all pdf members are made available. We provide predictions with both m_{top}=173.3 GeV and m_{top}=172.5 GeV; all other parameters are described in the corresponding README files inside the tarballs. Contains the usual 1-dim distributions. For the first time p_{T,top}, p_{T,tbar} and p_{T,avt} are computed (same for the rapidity distributions). fastNLO tables with the pure QCD results for both values of m_{top} are available here.

**Note:** The distribution in |y(top)| – |y(tbar)| corresponds to the LHC charge asymmetry. One should keep in mind that the calculation has not been optimized for extracting that asymmetry, however, and the MC error – while small for the differential distribution – will be substantial for the asymmetry. In the dedicated A_{C} calculation arXiv:1711.03945 (see below) a dedicated effort has been made to extract the asymmetry with small MC error.

- Plots of the difference between pt
_{top}and pt_{tbar}distributions with the corresponding MC errors. We show predictions in NLO, NNLO and QCDxEW for 3 pdf sets (LUXqed, LUXqed17 and NNPDF3.1).

**Credits:** for all plots and results above please cite arXiv:1705.04105. We would like to thank Andrew Papanastasiou for his assistance in the derivation of some of the results.

Electronic files with the NNLO QCD + EW predictions for the ttbar charge asymmetry at the LHC 8 TeV and Tevatron from the publication: Czakon, Heymes, Mitov, Pagani, Tsinikos, Zaro: arXiv:1711.03945. The tarball includes two README files explaining separately the LHC and Tevatron results.

Electronic files with Tevatron differential distributions. The predictions are accurate to NNLO QCD + NLO EW and utilize dynamic scales. Predictions with a static scale are also available for easier comparison with previous calculations. Publication: Czakon, Heymes, Mitov, Pagani, Tsinikos, Zaro: arXiv:1712.04842. A README file explaining the results is included.

Electronic files with the top-quark-pair differential distributions in NNLO QCD + NLO EW for LHC at 8 TeV and 13 TeV from the publication: Czakon, Heymes, Mitov, Pagani, Tsinikos, Zaro: arXiv:1705.04105.

Results available for download (single tarball including a README file with explanations):

for the following four distributions: m_{tt}, y_{tt}, y_{avt} and p_{Tavt}. As a default pdf set we use LUXqed. Results based on the NNPDF3.0QED pdf set are provided as well.

- LHC 13 TeV, exp bins, mtop=173.3GeV (fastNLO tables through NNLO QCD are also available)

computed in NNLO QCD + NLO EW for the following distributions/bins:

- m
_{tt}: {300.0, 360.0, 430.0, 500.0, 580.0, 680.0, 800.0, 1000.0, 1200.0, 1500.0, 2500.0} GeV - |y
_{tt}|: {0.0, 0.2, 0.4, 0.6, 0.8, 1.0, 1.2, 1.4, 1.6, 1.8, 2.4} - |y
_{avt}|: {0.0, 0.2, 0.4, 0.6, 0.8, 1., 1.2, 1.4, 1.6, 1.8, 2.0, 2.5} - p
_{Tavt}, p_{T leading top}, p_{T trailing top}: {0.0, 40.0, 80.0, 120.0, 160.0, 200.0, 240.0, 280.0, 330.0, 380.0, 430.0, 500.0, 800.0} GeV

Plots are available upon request (note that the leading/trailing top p_{T} distributions are new and have not been published before). The p_{T} distributions are computed with scale m_{T}(t1)/2 and m_{T}(t2)/2 for t1 and t2, respectively. We have checked that, as for the case of averaged top, the results are very close to the ones derived with scale H_{T}/4.

**Additional materials:**

- A recent presentation available online: (by Davide Pagani; 22 March 2017)

- Additional plots for LHC 13 TeV that are not included in the above publication (correspond to Fig. 1 in the paper; multiplicative approach with NNPDF3.0QED):

- Complete set of plots but for LHC 8 TeV (download as tar.gz file). These are not included in the above publication.

- Zoom-in of the threshold region of Fig. 4 in the paper. This demonstrates that, as expected, the additive and multiplicative approaches agree for small p
_{T}and M_{tt}.

- Additional material for the discussion in sec.3.2 (see top of page 9 of the paper): Here we demonstrate that at large P
_{Tavt}, the differential cross-section at NLO QCD is driven by configurations containing hard top, hard antitop (with the two being almost back-to-back) and a soft jet. This can be seen from the following two figures.

This figure shows that the cross-section is dominated by “symmetric” configurations where the top and antitop have similar P_{T}‘s. This is true for a range of P_{T}‘s (two such cuts are chosen here: 500 GeV and 1000 GeV).

This figure shows that the peak of the cross-section (when P_{T}(top) is large) corresponds to jets with small P_{T}.

- Breakdown of the various contributions to EW
_{res}which is relevant for the discussion about fig.4 and fig.5 at the end of sec.3, bottom of page 11 of the paper.