Stephan Koenigstorfer
Founder at Lightberry; ex‑CERN physicist and PhD
sadkoeni
San Francisco, California
Wels, Upper Austria
Joined September 2025
Network
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Summary
Transitioned from experimental particle physics (ALICE collaboration) to founding an applied robotics startup — combining deep experimental measurement skills with product and systems engineering to build "social" robot brains. tum+3
Strong experimental and publication track record: PhD thesis and ALICE/CERN work resulted in first measurements of anti‑3He/anti‑3H absorption in matter and contributed to high‑impact collaboration publications (Nature Physics and related arXiv work). repository+2
Early cross‑disciplinary experience in entrepreneurship and consulting: student‑era startups and events (Loop Party, FoNS‑MAD involvement) and later consulting roles (quantitative finance / junior consulting), indicating strengths in bridging technical research, product, and business. koenigstorfer+2
Public presence and founder persona: active on X (formerly Twitter) as @sadkoeni, public-facing about robotics work and ALICE research, and listed as a founder on Lightberry / YC materials — showing a mix of scientific credibility and startup storytelling. x+2
Work
Education
Projects
Writing
First measurement of the absorption of anti‑3He and anti‑3H nuclei in matter and its impact on 3He propagation in the galaxy (PhD thesis / CERN‑THESIS)
January 1, 2023PhD thesis describing first measurements of the inelastic cross sections for anti‑3He and anti‑3H and their implications for antinuclei propagation in the Galaxy; forms the experimental basis for subsequent propagation and astrophysical forecasts.
Measurement of anti‑3He nuclei absorption in matter and impact on their propagation in the Galaxy (ALICE / Nature Physics paper)
January 1, 2022ALICE collaboration paper measuring the inelastic cross section for anti‑3He, used to update the transparency estimates of the Milky Way and improve interpretations of potential antinuclei signals from cosmic rays or dark‑matter annihilation.
Reevaluation of the cosmic antideuteron flux from cosmic‑ray interactions and from exotic sources (arXiv; co‑author)
January 1, 2022Co‑authored work that updated antideuteron flux predictions by including measured inelastic cross sections and re‑evaluating production/propagation uncertainties.