Heidelberg 2022 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 47: Cosmic Ray 2

T 47.7: Vortrag

Dienstag, 22. März 2022, 17:45–18:00, T-H32

Extending CRPropa with hadronic interactions for in-source propagation of UHECRs* — •Leonel Morejon — Bergische Universität Wuppertal, Gaußstr. 20, 42119 Wuppertal

CRPropa is a versatile Monte Carlo code for the propagation of Ultra-High Energy Cosmic Rays (UHECRs). Part of its strength is the possibility to combine it with user code to provide additional functionality. For example, it has been employed with post-simulation computations to study sources where hadronic interactions are of interest. However, when such interactions are too important, like may be the case in certain bursting sources, this type of approach is inconsistent.

This contribution reports on the ongoing effort to extend CRPropa with the inclusion of hadronic interactions. The approach involves exposing hadronic modelling softwares (e.g. EPOS-LHC, SYBILL, QGSJet) to the main code, and thus, make them available to all users natively (i.e. no need for additional coding). The result is a new module within CRPropa that computes hadronic interactions in runtime, along with the other interactions in the code. The performance of this new module is profiled and simple case studies are selected to illustrate its use.

* Funded by the Deutsche Forschungsgemeinschaft through project number 445990517.