ttbar-fastNLO

FastNLO tables for top-pair production

This page contains FastNLO tables with top-quark-pair differential distributions in NNLO QCD for LHC. For details please see the publication: Czakon, Heymes, Mitov, arXiv:1704.08551.

The fastNLO toolkit, as well as instructions about how to convolute tables with pdf sets, can be obtained from the fastNLO website: http://fastnlo.hepforge.org. All tarballs below contain the tables as well as README files with further details and an example of how to use the tables.

Results available for download:

 


2-dim LHC 8 TeV distributions for CMS binning arXiv:1703.01630. Top quark mass: mt=173.3 GeV. Computed are the following pairs of observables: {PTavt, Yavt}, {Mtt, Yavt}, {Mtt, Ytt}, {Mtt, detatt}, {Mtt, PTtt}. For details and definitions please see the README file inside the tarball.

Included are both the fastNLO tables and .dat files computed with specific PDF sets.

Based on the paper arXiv:1912.08801 (by Czakon, Dulat, Hou, Huston, Mitov, Papanastasiou, Sitiwaldi, Yu, Yuan). If you use the tables please kindly cite this publication.


The tarball contains two directories; one has 2-dim distributions common for all 3 masses while the second one contains additional 2-dim distributions for mt=172.5GeV only. Besides the fastNLO tables, as usual, we also provide text files with predictions based on specific pdf sets. Unlike the fastNLO tables, these .dat files contain the information about the scale uncertainty of the 2-dim distributions.

When using our 2-dim distribution please cite the paper arXiv:1912.08801 as well as the papers mentioned in the README files inside the tarball.


Tables with 1-dim distributions in pure QCD through NNLO. Available distributions and bins:

  • mtt (GeV) : [300, 380, 470, 620, 820, 1100, 1500, 2500]
  • pTtop,pTtbar,pTavt, (GeV) : [0, 65, 125, 200, 290, 400, 550]
  • pTtt (GeV) : [0, 40, 100, 200, 310, 420, 570]
  • ytop,ytbar,yavt : [-2.6, -1.8, -1.35, -0.9, -0.45, 0.0, 0.45, 0.9, 1.35, 1.8, 2.6]
  • ytt : [-2.6, -1.6, -1.2, -0.8, -0.4, 0.0, 0.4, 0.8, 1.2, 1.6, 2.6]
  • dYtYtbar : [-2.6, -1.4, -0.9, -0.4, 0, 0.4, 0.9, 1.4, 2.6]

The corresponding results in QCD x EW are available here.

Credits: we would like to thank Andrew Papanastasiou for his assistance in the derivation of the results.


where bin1 corresponds to the binning in 1505.04480 (CMS) and 1511.04716 (ATLAS), lepton+jet channel measurements, for the following four distributions: mtt, ytt, yavt and pTavt.

for the following four distributions: mtt, ytt, yavt and pTavt. The binning “bin1” is:

  • mtt (GeV) : [300.0, 360.0, 430.0, 500.0, 580.0, 680.0, 800.0, 1000.0, 1200, 1500, 2500]
  • ytt : [-2.4,-1.8,-1.6,-1.4,-1.2,-1.0,-0.8,-0.6,-0.4,-0.2,0.0, 0.2, 0.4, 0.6, 0.8, 1.0, 1.2, 1.4, 1.6, 1.8, 2.4]
  • yavt : [-2.5,-2.0,-1.8,-1.6,-1.4,-1.2,-1.,-0.8,-0.6,-0.4,-0.2,0.0, 0.2, 0.4, 0.6, 0.8, 1., 1.2, 1.4, 1.6, 1.8, 2.0, 2.5]
  • pTavt (GeV) : [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]