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Achievement: Pull Sharkx2

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Achievement: Pull Sharkx2

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alons126/README.md

Hi, I’m Alon 👋

Physics PhD student focused on scientific software, simulation, algorithm development, and collaborative workflows. Experienced with large production codebases, cross-institution workflows, and research-grade debugging. Comfortable working at the intersection of physics and software engineering.

Selected Projects

CLAS12 Sample Tools

Configurable sample preparation and HPC job submission for detector simulation

  • Developed a unified workflow for creating simulation input from uniformly sampled particle kinematics or existing GENIE event output
  • Centralized configuration validation, target vertex sampling, file handling, and run metadata across both input paths
  • Automated Slurm job-array submission for GEMC detector simulation and COATJAVA reconstruction at Jefferson Lab
  • Structured the code to support additional event-generator formats without duplicating the common workflow
  • Tech stack: C++, Python, C shell, ROOT, CMake, Slurm

Repositories: Personal · e4ν collaboration
Documentation: Personal wiki · Collaboration wiki

GEMC / CLAS12 Target Implementation (RG-M)

Production geometry implementation merged into an international, multi-institutional simulation framework

  • Implemented Ar, C, and Sn target geometries and configurations
  • Code merged into the official repositories
  • Author of a published CLAS12 technical note documenting the implementation (CLAS12 Note 2026-001)
  • Tech stack: Perl, CAD-based geometry workflows, GEANT4 / GEMC simulation framework

PR (clas12Tags): gemc/clas12Tags#64
PR (clas12-config): JeffersonLab/clas12-config#119
Technical note: https://misportal.jlab.org/mis/physics/clas12/viewFile.cfm/2026-001.pdf?documentId=185

SuSA Electron-Mode Validation (GENIE)

Bug identification and fix in a production neutrino–nucleus interaction generator

  • Identified a bug where the GENIE event generator (v3.2) generated only 1n1p final states for 2p2h SuSA-MEC
  • Traced the issue to missing/misused hadronic tensor tables and incorrect pair selection logic
  • Integrated new tensor tables, fixed probability calculations, and restored 2p / 2n final states
  • Corrections merged into the official GENIE codebase (v3.4+); contributor within the GENIE collaboration

PR: GENIE-MC/Generator#242
Detailed validation in MSc thesis, Section 9.1.3

Skills

  • Languages: C++, Python, Perl
  • Scripting: Bash, C shell (csh)
  • Build tools: CMake, Make
  • Configuration and data formats: XML, JSON, GEMC gcard files
  • Frameworks: ROOT, CLAS12ROOT, GENIE, GEANT4, GEMC
  • Development tools: Git / GitHub (pull requests, code reviews)
  • Software engineering: Modular software design, workflow automation, configuration validation, debugging, technical documentation
  • Domains: Monte Carlo simulation, scientific validation, particle physics software, detector geometry, data analysis, event reconstruction, algorithm development
  • Systems: Linux, HPC environments, Slurm job arrays

Pinned Loading

  1. CLAS12-sample-tools CLAS12-sample-tools Public

    Configuration-driven tools for creating CLAS12 simulation HIPO files from uniform acceptance samples or GENIE GST truth, and for submitting completed samples to GEMC and CLAS12 reconstruction as Sl…

    C++ 1 1