Sökresultat

Long-term predictors of participation in social and leisure activities ten years after stroke

Some comments on the current status of event generators for small-x

We discuss some aspects of the current status of event generators for small-x DIS. In particular we report on recent results using the CCFM evolution implemented in the SMALLX and CASCADE program concerning the importance of the so-called consistency constraint, and compare with the linked dipole chain model implemented in the LDC program. We point out some potential problems with the resolved vir

A public health perspective on housing accessibility for senior citizens: Estimating effects on group and population levels

Re-ablement for older community-living older people: Evidence-based interventions involving occupational therapists are needed

Background:Re-ablement is an approach aiming at improve home-care services for older people and to enable and support active engagement in everyday activities. An important responsibility for occupational therapists (OT) is to educate and support home care personnel, by coaching, mentoring and teaching them to work together with the clients to support their management of everyday activities as far

Physical and social aspects of neighborhood and the health situation of older people

Is BFKL ruled out by the Tevatron gaps between jets data?

The Color dipole model and the ARIADNE program at high Q**2

Summary of activities in the working group on QCD cascades of the HERA Monte Carlo workshop

Some comments on event generators for deeply inelastic e gamma scattering

Final-state properties in the LDC Monte Carlo

Development strategies for PYTHIA version 7

Tuning MC models to fit DIS e gamma scattering events

Monte Carlo models of DIS e-gamma scattering must describe hard emissions as well as the soft and collinear limits. Comparison with the observed experimental hadronic energy flow has shown that various models underestimate the high-p_T contribution, in particular at low-x. We have attempted to tune the Herwig, Pythia and Ariadne models to improve the agreement with the data, and to understand the

Evolution effects in Z0 fragmentation into charmonium

In Z0 decay into prompt charmonium, i.e. charmonium not originating from B-meson decays, the most important contribution is expected to come from colour-octet mechanisms. However, previous fixed-order calculations of the colour-octet contribution contain large logarithms which, in a more complete treatment, should be resummed to all orders. We study this resummation by using a Monte Carlo QCD casc

The LDC event generator

Jets and high E(T) phenomena

Generating heavy quarkonia in a perturbative QCD cascade

We present an implementation of heavy quarkonium production within a perturbative QCD cascade based on the Color Dipole Cascade model. We consider the processes most relevant in the context of the ψ′ surplus at the Tevatron; g → ψ′ and c → ψ′ in the color-singlet model and g → ψ′ through the color-octet mechanism. Our implementation is, however, easily extendible to other quarkonia and other produ

Photon radiation in the dipole model and in the Ariadne program

HZTOOL: A package for Monte Carlo-data comparison at HERA (version 1.0)

The Physics case for a forward detector upgrade

Color reconnections and rapidity gaps

I argue that the success of recently proposed models describing events with large rapidity gaps in DIS at HERA in terms of non-perturbative colour exchange is heavily reliant on suppression of perturbative gluon emission in the proton direction. There is little or no physical motivation for such suppression and I show that a model without this suppression cannot describe the rapidity gap events at