Resummed differential cross sections for top-quark pairs at the LHC

Abstract

We present state of the art resummation predictions for differential cross sections in top-quark pair production at the LHC. They are derived from a formalism which allows the simultaneous resummation of both soft and small-mass logarithms, which endanger the convergence of fixed-order perturbative series in the boosted regime, where the partonic center-of-mass energy is much larger than the mass to the top quark. We combine such a double resummation at NNLL${}^{\prime }$ accuracy with standard soft-gluon resummation at NNLL accuracy and with NLO calculations, so that our results are applicable throughout the whole phase space. We find that the resummation effects on the differential distributions are significant, bringing theoretical predictions into better agreement with experimental data compared to fixed-order calculations. Moreover, such effects are not well described by the NNLO approximation of the resummation formula, especially in the high-energy tails of the distributions, highlighting the importance of all-orders resummation in dedicated studies of boosted top production.

5 pages, 5 figures; minor notational changes

References in corpus (7)

• Parton distributions for the LHC
• Higgs boson gluon-fusion production in N3LO QCD
• MCFM for the Tevatron and the LHC
• High-precision differential predictions for top-quark pairs at the LHC
• Resummed Higgs cross section at N${}^3$LL
• Measurement of the differential cross-section of highly boosted top quarks as a function of their transverse momentum in $\sqrt{s}$ = 8 TeV proton-proton collisions using the ATLAS detector
• NNLO hard functions in massless QCD

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