Exclusive final states in the Dipole Model


by: Flensburg, Christoffer (Lund U.)

We have developed a BFKL-based dipole model in impact parameter space, that has successfully predicted a wide range of total cross sections. The model has now been extended to a full event generator that is showing promising results. Some of the difficulties in non-leading order BFKL are discussed, and preliminary results are compared to CDF and ALICE data.

Next-to-leading order matrix elements and truncated showers


by: Hoche, Stefan (Zurich U.) et al.

An algorithm is presented that combines the ME+PS approach to merge sequences of tree-level matrix elements into inclusive event samples with the POWHEG method, which combines exact next-to-leading order matrix elements with parton showers. The quality of the approach and its implementation in Sherpa are exemplified by results for e+e- annihilation into hadrons at LEP, for Drell-Yan lepton-pair production at the Tevatron and for Higgs-boson and W+W- production at LHC energies.

Monte Carlo for the LHC


by: Seymour, Michael H. (Manchester U.)

I review the status of the general-purpose Monte Carlo event generators for the LHC, with emphasis on areas of recent physics developments. There has been great progress, especially in multi-jet simulation, but I mention some question marks that have recently arisen.

MCSTHAR++, a Monte Carlo code for the microcanonical hadronization

Nuovo Cim. 33 (2010) 185-188

by: Bignamini, C. (Pavia U.) et al.

MCSTHAR++ is a new Monte Carlo code implementing the Statistical Hadronization Model. This model assumes that hadronization proceeds through the microcanonical decay of massive extended clusters. Unlike other hadronization models, in this approach very few free parameters are needed, as has been demonstrated in previous studies. The tuning of the model and the comparison with the data is ongoing.

THE TOOLS AND MONTE CARLO WORKING GROUP Summary Report from the Les Houches 2009 Workshop on TeV Colliders


by: Butterworth, J.M. (University Coll. London) et al.

This is the summary and introduction to the proceedings contributions for the Les Houches 2009 "Tools and Monte Carlo" working group.

Inclusion of Parton Distribution Functions in PYTHIA8


by: Kasemets, Tomas (Lund U.)

A selection of the latest and most frequently used PDFs is incorporated in PYTHIA8, including the MC-adapted PDFs from the MSTW and CTEQ collaborations. This thesis examines the differences in PDFs as well as the effect they have on results of simulations. The results are also compared to data collected by the CDF experiment.