Differential distributions for top-quark hadro-production with a running mass

Dowling, M. and Moch, Sven-Olaf (2014) Differential distributions for top-quark hadro-production with a running mass. EUROPEAN PHYSICAL JOURNAL C, 74 (11). ISSN 1434-6044

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Abstract

We take a look at how the differential distributions for top-quark production are affected by chang- ing to the running mass scheme. Specifically we consider the transverse momentum, rapidity and pair-invariant mass distributions at NLO for the top-quark mass in the MS scheme. It is found that, similar to the total cross section, the perturbative expansion converges faster and the scale dependence improves using the mass in the MS scheme as opposed to the on-shell scheme. We also update the analysis for the total cross section using the now available full NNLO contribution.

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