Apr 3 – 7, 2017
University of Birmingham
Europe/London timezone

Resummation for Top Quark Pair Production

Apr 4, 2017, 8:50 AM
20m
West Building Seminar Room 1

West Building Seminar Room 1

WG5) Physics with Heavy Flavours WG5 Physics with Heavy Flavours

Speaker

Darren Scott (Durham University)

Description

With top quark physics now entering the precision era, the need for ever more accurate theory calculations is greater than ever. In this talk we present a formalism, derived from SCET, for the simultaneous resummation of soft and small mass logarithms present in top quark pair production at the LHC. By matching with standard soft gluon resummation and recent exact NNLO results, we present differential cross sections of the pair invariant mass and top quark transverse momentum which are applicable to the entire phase space with an accuracy of NNLO+NNLL' . Finally, we will also comment on the choice of factorisation scale and on comparison with experimental data.

Primary authors

Michal Wiktor Czakon (Rheinisch-Westfaelische Tech. Hoch. (DE)) Andrea Ferroglia (New York City College of Technology CUNY) David Heymes (University of Cambridge) Alexander Mitov (University of Cambridge (GB)) Ben Pecjak (IPPP Durham) Darren Scott (Durham University) Dr Li Lin Yang (School of Physics and State Key Laboratory of Nuclear Physics and Technology Peking University, Beijing 100871, China) Mr Xing Wang (School of Physics and State Key Laboratory of Nuclear Physics and Technology Peking University, Beijing 100871, China)

Presentation materials