Speaker
Mr
Daniel Schwartländer
(Institut für theoretische Physik, Universität Münster)
Description
The measurements of associated production of a vector boson with a top-antitop
quark pair provide an important test for the Standard
Model at the LHC. These are not only key processes to measure the top quark
properties but also are very relevant in searches for new
physics, both as being directly sensitive to it and as providing an
important background. While NNLO calculations for this particular type of 2 to 3 processes are
currently out of reach, a class of corrections beyond NLO can be taken
into account with the help of resummation methods. In this talk we
consider an application of soft gluon resummation in Mellin space to
these processes at hadron colliders and discuss numerical predictions at
NNLL matched to NLO precision for the LHC.
Primary author
Mr
Daniel Schwartländer
(Institut für theoretische Physik, Universität Münster)
Co-authors
Dr
Anna Kulesza
(University of Muenster)
Dr
Leszek Motyka
(Institute of Physics, Jagellonian University)
Dr
Tomasz Stebel
(Institute of Nuclear Physics PAN Cracow)
Dr
Vincent Theeuwes
(Department of Physics, SUNY Buffalo)
