Diffractive and non-diffractive wounded nucleons and final states in pA collisions

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We review the state-of-the-art of Glauber-inspired models for estimating the distribution of the number of participating nucleons in pA and AA collisions. We argue that there is room for improvement in these model when it comes to the treatment of diffractive excitation processes, and present a new simple Glauber-like model where these processes are better taken into account. We also suggest a new way of using the number of participating, or wounded, nucleons to extrapolate event characteristics from pp collisions, and hence get an estimate of basic hadronic final-state properties in pA collisions, which may be used to extract possible nuclear effects. The new method is inspired by the Fritiof model, but based on the full, semi-hard multiparton interaction model of Pythia8.

Original languageEnglish
Article number139
JournalJournal of High Energy Physics
Issue number10
Publication statusPublished - 2016 Oct 1

Subject classification (UKÄ)

  • Subatomic Physics

Free keywords

  • Heavy Ion Phenomenology
  • QCD Phenomenology


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