🔭 CRISP Package
A Python package for computing UHECR propagation quantities using closed-form probability distribution functions. Applicable to both in-source and extragalactic scenarios.
Theoretical Astroparticle Physics
My work centers on simulations of Ultra-High-Energy Cosmic Rays (UHECRs) and Multimessenger Astrophysics. Especially interested the impact of interaction cross sections on the production and propagation of UHECRs. I develop simulation code and implement interaction models for cosmic-ray propagation, bridging theoretical and experimental knowledge with observational data from observatories of cosmic radiation.
Professional Experience
May 2021 – Present
Postdoctoral Researcher – Astroparticle Physics 📍 Bergische Universität Wuppertal, Germany
Developing propagation codes for UHECRs; implementing hadronic models in CRPropa; contributing to the Pierre Auger Collaboration and the DFG-ANR MICRO project.
2017 – 2021
PhD Student – Theoretical Astroparticle Physics 📍 DESY Zeuthen & Humboldt-Universität zu Berlin
Thesis on nuclear interactions for UHECR source simulations and propagation.
2015 – 2017
Applied Physicist 📍 ELI-Beamlines, Czech Republic
Monte Carlo simulations for laser-plasma experiments using FLUKA. Radiation protection and shielding design.
Feb 2012 – Dec 2014
Fellow – EN-STI Group 📍 CERN, Geneva, Switzerland
Performed Monte Carlo simulations for particle accelerator applications within the CATHI project. Estimated radiation profilesfor the upgrade of ISOLDE using FLUKA.
2010 – 2012
Teaching Assistant / Master student 📍 Instituto Superior de Tecnologías y Ciencias Aplicadas, Havana, Cuba
Key Projects
🧪 CRPropa Development
Member of the developers and contributing to the project. Implementing hadronic interaction modules in the CRPropa framework for cosmic-ray propagation.
⚛️ MICRO Project
Investigating bursting source scenarios with new simulation frameworks to explain the observed UHECR spectrum from a multi-messenger approach. Funded jointly by DFG and NFR.
🌌 Pierre Auger Collaboration
Contributing to the world's largest observatory for ultra-high-energy cosmic rays, focusing on composition studies, anisotropy analyses, and propagation modeling.
⚛️ FLUKA & Flair
Member of the FLUKA collaboration; development of Monte Carlo simulation models for particle-matter interactions.
Selected Publications
- LM & Kampert, K.-H. (2026). Stochastic analysis of ultrahigh-energy cosmic ray interactions. A & A, 708, A21. [DOI]
- Dörner, J., LM, Kampert, K.-H., & Becker Tjus, J. (2025). Uncertainties in astrophysical gamma-ray and neutrino fluxes from proton-proton cross-sections in the GeV to PeV range JCAP, 04, 043. [DOI]
- Meinert, J., LM, Sandrock, A., et al. (2024). Modified temperature–redshift relation and ultra-high-energy cosmic ray propagation. ApJ, 967, 89. [DOI]
- LM, Fedynitch, A., Boncioli, D., Biehl, D., & Winter, W. (2019). Improved photomeson model for interactions of cosmic ray nuclei. JCAP, 11, 007. [DOI]
Education
2017 – 2021
PhD in Theoretical Astroparticle Physics | Humboldt-Universität zu Berlin, Germany
Thesis: "New Interaction Models of Ultra-high-energy Cosmic Rays from a Nuclear Physics Approach"
Advisor: Walter Winter • Focus: photohadronic interactions, radiation modelling, multi-messenger propagation of superheavy nuclei
Thesis: "New Interaction Models of Ultra-high-energy Cosmic Rays from a Nuclear Physics Approach"
Advisor: Walter Winter • Focus: photohadronic interactions, radiation modelling, multi-messenger propagation of superheavy nuclei
2010 – 2011
MSc in Nuclear Physics | Instituto Superior de Tecnologías y Ciencias Aplicadas, Havana, Cuba