Threshold Resummation for Top-Pair Hadroproduction to Next-to-Next-to-Leading Log
By Michal Czakon, Alexander Mitov, G. Sterman. 2009
175 citations recorded by the source corpus.
We derive the threshold-resummed total cross section for heavy quark production in hadronic collisions accurate to next-to-next-to-leading logarithm, employing recent advances on soft anomalous dimension matrices for massive pair production in the relevant kinematic limit. We also derive the relation between heavy quark threshold resummations for fixed pair kinematics and the inclusive cross section. As a check of our results, we have verified that they reproduce all poles of the color-averaged $q\overline{q}\ensuremath{\rightarrow}t\overline{t}$ amplitudes at two loops, noting that the latter are insensitive to the color-antisymmetric terms of the soft anomalous dimension.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/fb157da2da1a1e7be73915298ccff4dc5ffb0e7f
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Nuclear and High Energy Physics
- Stefan Kallweit
- Stefan Dittmaier
- Ansgar Denner
- Atlas Collaboration
- Stefano Pozzorini
- Cms Collaboration
- M. Grazzini
- Michal Czakon
Citations in the corpus
- NLO QCD corrections to off-shell top-antitop production with leptonic decays at hadron colliders (2012, methodology): “Later also electroweak radiative corrections were calculated [5–10], and recently important progress has been achieved both in the resummation of logarithmically enhanced terms [11–14] and towards the inclusion of QCD corrections at next-to-next-to-leading-order (NNLO) [15–25].”
- Complete off-shell effects in top quark pair hadroproduction with leptonic decay at next-to-leading order (2010, background): “Even though, the first results for next-to-leading order (NLO) QCD corrections to heavy quark production were presented more than twenty years ago [1–4], recent progress in NLO [5–9] and next-to-next-to leading order (NNLO) [10–15] calculations, as well as next-to-next-to-leading-log resummations (N”
- Constraints on the gluon PDF from top quark pair production at hadron colliders (2013, background): “Thanks to a much improved control over higher order terms, including soft gluon emissions through next-to-next-to leading log (NNLL) [5–7], scale uncertainties are now controlled down to the 2.”
- Soft gluon resummation for gluon-induced Higgs Strahlung (2014, background): “[39] it has been shown that the total cross section obtained by integrating the Q-approach result over the invariant mass contains the same leading logarithmic terms as those in theM -approach, but differs by power-suppressed terms.”