Interleaved Parton Showers and Tuning Prospects

Understand

General-purpose Monte Carlo event generators have become important tools in particle physics, allowing the simulation of exclusive hadronic final states.

• In this article we examine the Pythia 8 generator, in particular focusing on its parton-shower algorithms.
• Some relevant new additions to the code are introduced, that should allow for a better description of data.
• We also implement and compare with 2 to 3 real-emission QCD matrix elements, to check how well the shower algorithm fills the phase space away from the soft and collinear regions.