2017/08/31 by Stefan Sellner, M. Besirli, M. Bohman +15 · 1 citation
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Atomic and Molecular Physics #Atomic and Subatomic Physics Research
paper · pdf · doi:10.1088/1367-2630/aa7e73
openalex publication_date 2017/08/31 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
Continuous monitoring of a cloud of antiprotons stored in a Penning trap for 405 days enables us to set an improved limit on the directly measured antiproton lifetime. From our measurements we extract a storage time of equivalent antiproton-seconds, resulting in a lower lifetime limit of with a confidence level of . This result improves the limit on charge-parity-time violation in antiproton decays based on direct observation by a factor of 7.