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Showing 1–2 of 2 results
Advanced filters: Author: Aleksander Gajos Clear advanced filters

  • Positronium decay events can be used to test violation of fundamental symmetries. Here, the authors use events in the J-PET to improve existing limits on P, T and CP invariance in positronium decays, thanks to a method that does not require to measure the positronium spin but determining polarization of the annihilation photons instead.

    • Paweł Moskal
    • Eryk Czerwiński
    • Wojciech Wiślicki
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-10

  • CPT violation could manifest itself in annihilating positronium events, but searching for this effect would require to know the spin of the annihilating system. Here, the authors do this using a positron-emission tomography scanner, finding no violation with a statistical precision of 10−4.

    • P. Moskal
    • A. Gajos
    • W. Wiślicki
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-9