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

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## Abstract

We review the state-of-the-art of Glauber-inspired models for estimating the distribution of the number of participating nucleons in p*A* 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 p*A* 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.

## Keywords

Heavy Ion Phenomenology QCD Phenomenology## Notes

### **Open Access**

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