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Abstract:
The first PET tomograph based on plastic scintillators was designed and built at the Institute of Physics of the Jagiellonian University. Jagiellonian PET (J-PET) is optimized for the detection of photons originating from positron-electron annihilation. It is a unique research device that allows studying decays of positronium in the whole available phase space. Moreover, it enables the determination of not only the momentum vectors of photons but it is also capable of determining photon’s polarization and imaging the annihilation places. Access to the photons’ polarization allows exploring a new class of discrete symmetry odd operators that were not investigated before. It enables also us to study the quantum entanglement of high-energy photons originating from the decay of positronium. The presentation will include the description of the methods, results, and research plans for discrete symmetries tests in the decays of positronium – the purely leptonic system built from charged leptons.
P. Moskal et al., Nature Reviews Physics 1 (2019) 527.
J-PET: P. Moskal et al., Nature Communication 12 (2021) 5658.
J-PET: P. Moskal et al., Science Advances 7 (2021) eabh4394, in press
Important: This seminar is held on building D-11 room 104.
Please, be advised that due to the pandemic sanitary rules, we can absorbe 1 unvaccinated person per 10m^2, which means 4 people. As most of us are vaccinated, this should not be a problem. There will be a list of participants, stating that they were (or were not) vaccinated / are immune / with a valid covid test, where we will ask you to sign in upon arrival. Also, people with ANY symptoms of cold (either of running nose, cough, temperature, ...), not necessarily covid, are not allowed to participate according to the rules. We hope you understand. The situation is dynamic and we will of course keep you posted. At the moment we plan to proceed “live”, similary to teaching at AGH.