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Sep 27 – 30, 2016
DESY Hamburg
Europe/Berlin timezone

Top pair production with a jet with NLO QCD off-shell effects at the LHC

Sep 29, 2016, 4:25 PM
20m
Seminar room 4a/b (DESY Hamburg)

Seminar room 4a/b

DESY Hamburg

Notkestrasse 85, 22607 Hamburg

Speaker

Mr Manfred Kraus (RWTH Aachen University)

Description

Top quark physics is entering a precision era with the LHC Run II. A comprehensive study of top quark pair production in association with one hard jet in the di-lepton decay channel is presented for a center-of-mass energy of 13 TeV. The NLO QCD calculation takes into account all resonant and non-resonant and interference contributions for off-shell top quarks, and W and Z bosons. Theoretical uncertainties are addressed through an independent variation of the renormalization and factorization scales, where fixed-valued and dynamical scales have been investigated. In addition, the uncertainties induced by the parametrization of parton distribution functions have been addressed. Finally, a detailed comparison of the uncertainties for integrated and differential cross sections is presented.

Primary author

Mr Manfred Kraus (RWTH Aachen University)

Presentation materials