Variation of the Rate of Decay of Mesotrons with Momentum by Bruno Rossi and David B. Hall Created 2026-10-20 Updated 2026-11-05
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Bruno Rossi and David B. Hall, Physical Review 59, 223–228 (1941). The primary experiment compared more and less penetrating cosmic-ray particle populations and found momentum-dependent decay rates compatible with relativistic moving-clock rates.
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