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Proceedings 2019, 10(1), 18;

The Angantyr Model for Heavy-Ion Physics in PYTHIA8 †‡

Department of Astronomy and Theoretical Physics, Solvegatan 14A, S-223 62 Lund, Sweden
Presented at Hot Quarks 2018—Workshop for Young Scientists on the Physics of Ultrarelativistic Nucleus-Nucleus Collisions, Texel, The Netherlands, 7–14 September 2018.
LU-TP 18-37.
Published: 12 April 2019
PDF [248 KB, uploaded 12 April 2019]


We have formulated a new model for collisions with nuclei, called Angantyr, which is now included in PYTHIA8 event generator. The model is inspired by the old Fritiof model, but also includes effects of hard partonic interactions. It uses a Glauber model to calculate the number of wounded nucleons, but includes fluctuations in the nucleon-nucleon(NN) interaction to separate non-diffractively and diffractively wounded nucleons. The MC simulates final states without assuming a thermalised plasma. In this manner we are providing an event generator to be used to simulate events from pp to AA with the same underlying physics approach. Collective effects due to high string density are not included in the present version, but will be added in future work.
Keywords: PYTHIA8; heavy ion collisions PYTHIA8; heavy ion collisions
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Shah, H. The Angantyr Model for Heavy-Ion Physics in PYTHIA8 †‡. Proceedings 2019, 10, 18.

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