Conveners
WG1: Monte Carlo, MB, and UE
- Dominic Hirschbuehl (University Wuppertal)
- Oldrich Kepka (Institute of Physics, Prague)
WG1: Monte Carlo, MB, and UE
- Dominic Hirschbuehl (University Wuppertal)
- Oldrich Kepka (Institute of Physics, Prague)
WG1: Monte Carlo, MB, and UE
- Dominic Hirschbuehl (University Wuppertal)
- Oldrich Kepka (Institute of Physics, Prague)
WG1: Monte Carlo, MB, and UE
- There are no conveners in this block
WG1: Monte Carlo, MB, and UE
- There are no conveners in this block
This talk presents ATLAS recent measurements of distributions sensitive to Underlying event, the hadronic activity observed in relationship with the hard scattering in the event using the full ATLAS dataset at center-of-mass energy of 13 TeV. Measurement of charged-particle distributions as a function of Upsilon momentum and different Upsilon states will be discussed. The measurement benefits...
Multiple measurements of high-multiplicity pp and p-A collisions at LHC energies have revealed that these small collision systems exhibit some of the quark-gluon plasma features, e.g. collective behaviour and strangeness enhancement, formerly thought to be achievable only in heavy-ion collisions. The dependence on multiplicity suggests significant final-state interactions. A proposed method to...
With the 13 TeV proton-proton collisions measured by the CMS detector at the LHC, a detailed measurement of the Z+jet production provides ideal conditions for the hadronic jet production study, which provides a stringent test for perturbative QCD. It also helps to understand the non-perturbative QCD models by reflecting the soft-gluon emission kinematics in the low Z pt region. The...
Hadronization is a complex quantum process whereby quarks and gluons become hadrons. The widely-used models of hadronization in event generators are based on physically-inspired phenomenological models with many free parameters. We propose an alternative approach whereby neural networks are used instead. Deep generative models are highly flexible, differentiable, and compatible with Graphical...
We present first soft physics and tuning results from the upcoming Sherpa 3.0 release. The new Sherpa release contains updated soft physics modules and is currently re-tuned and tested. Tuning results, in particular for hadronisation and underlying event observables will be discussed.
Monte Carlo Event Generators contain several free parameters that cannot be inferred from first principles and need to be tuned to better model the data. With increasing precision of perturbative theoretical calculations to higher orders and hence decreasing theoretical uncertainties, it becomes crucial to study the systematics of non-perturbative phenomenological models. A recent attempt was...
We report about the very recent release (4.0.0) of the EPOS event generator, with many new developments.
The basic principle of treating (nucleonic or partonic) scatterings in parallel (the main element of the EPOS approach), based on S-matrix theory, has been used for two decades. But there is a major problem. For inclusive cross sections (but only for those!), important cancellations occur,...
Various mechanisms potentially capable to tame the energy rise of interaction cross sections and of particle production in hadronic collisions are analysed. In particular, a phenomenological implementation of higher twist corrections to parton scattering processes, as realized in the QGSJET-III Monte Carlo generator, is described in some detail. The relation of the mechanism to ad hoc...
I will present recent development of hadronization and colour reconnection in the Herwig 7 event generator.
