Abstract
We discuss various aspects of inclusive top-quark pair production based on
Topixs, a new, flexible program that computes the production cross section at the Tevatron
and LHC at next-to-next-to-leading logarithmic accuracy in soft and Coulomb resummation,
including bound-state effects and the complete next-to-next-to-leading order
result in the q¯q channel, which has recently become available. We present the calculation
of the top-pair cross section in pp collisions at 8TeV centre-of-mass energy, as well as the
cross sections for hypothetical heavy quarks in extensions of the standard model. The dependence
on the parton distribution input is studied. Further we investigate the impact of
LHC top cross section measurements at ps = 7TeV on global fits of the gluon distribution
using the NNPDF re-weighting method.
| Original language | English |
|---|---|
| Article number | 194 |
| Pages (from-to) | 194/1-194/25 |
| Number of pages | 25 |
| Journal | Journal of High Energy Physics |
| Volume | 1207 |
| DOIs | |
| Publication status | Published - 2012 |