The Development of MPI Modelling in PYTHIA
High Energy Physics - Phenomenology
2017-06-08 v1
Abstract
Many of the basic ideas in multiparton interaction (MPI) phenomenology were first developed in the context of the PYTHIA event generator, and MPIs have been central in its modelling of both minimum-bias and underlying-event physics in one unified framework. This chapter traces the evolution towards an increasingly sophisticated description of MPIs in PYTHIA, including topics such as the ordering of MPIs, the regularization of the divergent QCD cross section, the impact-parameter picture, colour reconnection, multiparton PDFs and beam remnants, interleaved and intertwined evolution, and diffraction.
Keywords
Cite
@article{arxiv.1706.02166,
title = {The Development of MPI Modelling in PYTHIA},
author = {Torbjörn Sjöstrand},
journal= {arXiv preprint arXiv:1706.02166},
year = {2017}
}
Comments
To be published in "Multiple Parton Interactions at the LHC", P. Bartalini and J. R. Gaunt, eds., World Scientific; 42 pages, 5 figures