Journal of High Energy Physics

, 2016:139 | Cite as

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

  • Christian Bierlich
  • Gösta Gustafson
  • Leif Lönnblad
Open Access
Regular Article - Theoretical Physics


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.


Heavy Ion Phenomenology QCD Phenomenology 


Open Access

This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.


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Copyright information

© The Author(s) 2016

Authors and Affiliations

  • Christian Bierlich
    • 1
  • Gösta Gustafson
    • 1
  • Leif Lönnblad
    • 1
  1. 1.Department of Astronomy and Theoretical PhysicsLundSweden

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