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Marvin Hemmer

PROFILE

Marvin Hemmer

Contributed to the AliceO2Group/AliceO2 repository by expanding physics simulation capabilities and improving detector reconstruction accuracy. Developed a script-driven approach in C++ and Python to automate the addition of eta, omega, and eta' meson constants, ensuring PhysicsConstants.h remains accurate and maintainable for future updates. Addressed a core bug in the EMCAL Clusterizer, modifying the algorithm to include neighboring cells when the energy gradient cut is disabled, which enhanced cluster formation and energy measurement reliability. Demonstrated strengths in algorithm development, constants management, and particle physics data handling, delivering well-documented, isolated changes that support robust scientific analysis and maintainability.

Overall Statistics

Feature vs Bugs

50%Features

Repository Contributions

2Total
Bugs
1
Commits
2
Features
1
Lines of code
22
Activity Months2

Work History

September 2025

1 Commits • 1 Features

Sep 1, 2025

September 2025: Expanded physics constants coverage in AliceO2 by adding eta, omega, and eta' meson constants with updated PDG codes and masses. Implemented script-driven data generation to populate PhysicsConstants.h and ensured automated header updates. This work broadens simulation capabilities, improves result accuracy, and sets the stage for maintainable future updates.

October 2024

1 Commits

Oct 1, 2024

October 2024 (AliceO2Group/AliceO2): Delivered a critical bug fix to the EMCAL Clusterizer to include neighboring cells when the energy gradient cut is disabled, addressing a bug where only the seed cell was considered. This change improves cluster formation accuracy and energy reconstruction, with downstream benefits for physics analyses.

Activity

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Quality Metrics

Correctness90.0%
Maintainability90.0%
Architecture80.0%
Performance80.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

C++Python

Technical Skills

Algorithm DevelopmentConstants ManagementDetector ReconstructionParticle PhysicsPhysics Data Handling

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

AliceO2Group/AliceO2

Oct 2024 Sep 2025
2 Months active

Languages Used

C++Python

Technical Skills

Algorithm DevelopmentDetector ReconstructionParticle PhysicsConstants ManagementPhysics Data Handling