27 August 2017 to 1 September 2017
Other Institutes
Europe/Zurich timezone

Analytical and numerical approaches to (N)LL resummation

29 Aug 2017, 11:30
30m
F3-4

F3-4

Resummation and Monte Carlo generators Resummation and Monte Carlo generators

Speaker

Daniel Reichelt

Description

While large logarithms arising from the IR structure of QCD can be
resummed to higher logarithmic accuracy for specific observables,
numerical calculations based on parton showers are formally correct to
LL only. However, they incorporate additional effects like local
momentum conservation, which are beyond this formal accuracy. As a
first step towards a quantitative study of these effects, a final
state parton shower is constructed which implements the exact NLL
result for certain observables. It is then used to obtain a detailed
comparison of the numerical size of approximations made in analytic
NLL calculations.

Primary author

Co-authors

Frank Siegert (Technische Universitaet Dresden (DE)) Stefan Hoeche (SLAC)

Presentation materials