Photon-photon and photon-hadron processes in Pythia 8

Authors

  • Ilkka Helenius Institute for Theoretical Physics, Tübingen University, Auf der Morgenstelle 14, 72076 Tübingen, Germany

DOI:

https://doi.org/10.23727/CERN-Proceedings-2018-001.119

Keywords:

Perturbative QCD, Photoproduction, Monte-Carlo generators, Jets

Abstract

We present a new implementation of photoproduction processes in e+e- and ep collisions into Pythia 8 Monte-Carlo event-generator. In particular we discuss how the parton showers and multiparton interactions are generated with a resolved photon beam and what is the relative contribution from direct processes in different kinematical regions. As an application we show compa\-risons to data for charged-particle production in e^+e^- and ep collisions at LEP and HERA. We consider also photoproduction of dijets comparing to data for ep collisions at HERA and discuss about possibility to further constrain nuclear PDFs with ultra-peripheral heavy-ion collisions at the LHC.

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Published

2018-12-20

Issue

Section

Photon-hadron collisions at hadron colliders