Nukleonika (Dec 2015)
Searches for discrete symmetries violation in ortho-positronium decay using the J-PET detector
- Kamińska Daria,
- Gajos Aleksander,
- Czerwiński Eryk,
- Bednarski Tomasz,
- Białas Piotr,
- Gorgol Marek,
- Jasińska Bożena,
- Kapłon Łukasz,
- Korcyl Grzegorz,
- Kowalski Paweł,
- Kozik Tomasz,
- Krzemień Wojciech,
- Kubicz Ewelina,
- Niedźwiecki Szymon,
- Pałka Marek,
- Raczyński Lech,
- Rudy Zbigniew,
- Rundel Oleksandr,
- Sharma Neha Gupta,
- Silarski Michał,
- Słomski Adam,
- Strzelecki Adam,
- Wieczorek Anna,
- Wiślicki Wojciech,
- Zieliński Marcin,
- Zgardzińska Bożena,
- Moskal Paweł
Affiliations
- Kamińska Daria
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Kraków, Poland
- Gajos Aleksander
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Kraków, Poland
- Czerwiński Eryk
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Kraków, Poland
- Bednarski Tomasz
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Kraków, Poland
- Białas Piotr
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Kraków, Poland
- Gorgol Marek
- Department of Nuclear Methods, Institute of Physics, Maria Curie-Sklodowska University, 1 M. Curie-Skłodowskiej Sq., 20-031 Lublin, Poland
- Jasińska Bożena
- Department of Nuclear Methods, Institute of Physics, Maria Curie-Sklodowska University, 1 M. Curie-Skłodowskiej Sq., 20-031 Lublin, Poland
- Kapłon Łukasz
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Kraków, Poland and Institute of Metallurgy and Materials Science of the Polish Academy of Sciences, 25 W. Reymonta Str., 30-059 Kraków, Poland
- Korcyl Grzegorz
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Kraków, Poland
- Kowalski Paweł
- Świerk Computing Centre, National Centre for Nuclear Research, 7 Andrzeja Soltana Str., 05-400 Otwock/Świerk, Poland
- Kozik Tomasz
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Kraków, Poland
- Krzemień Wojciech
- High Energy Physics Division, National Centre for Nuclear Research, 7 Andrzeja Soltana Str., 05-400 Otwock/Świerk, Poland
- Kubicz Ewelina
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Kraków, Poland
- Niedźwiecki Szymon
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Kraków, Poland
- Pałka Marek
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Kraków, Poland
- Raczyński Lech
- Świerk Computing Centre, National Centre for Nuclear Research, 7 Andrzeja Soltana Str., 05-400 Otwock/Świerk, Poland
- Rudy Zbigniew
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Kraków, Poland
- Rundel Oleksandr
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Kraków, Poland
- Sharma Neha Gupta
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Kraków, Poland
- Silarski Michał
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Kraków, Poland
- Słomski Adam
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Kraków, Poland
- Strzelecki Adam
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Kraków, Poland
- Wieczorek Anna
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Kraków, Poland and Institute of Metallurgy and Materials Science of the Polish Academy of Sciences, 25 W. Reymonta Str., 30-059 Kraków, Poland
- Wiślicki Wojciech
- Świerk Computing Centre, National Centre for Nuclear Research, 7 Andrzeja Soltana Str., 05-400 Otwock/Świerk, Poland
- Zieliński Marcin
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Kraków, Poland
- Zgardzińska Bożena
- Department of Nuclear Methods, Institute of Physics, Maria Curie-Sklodowska University, 1 M. Curie-Skłodowskiej Sq., 20-031 Lublin, Poland
- Moskal Paweł
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Kraków, Poland
- DOI
- https://doi.org/10.1515/nuka-2015-0131
- Journal volume & issue
-
Vol. 60,
no. 4
pp. 729 – 732
Abstract
In this paper, we present prospects for using the Jagiellonian positron emission tomograph (J-PET) detector to search for discrete symmetries violations in a purely leptonic system of the positronium atom. We discuss tests of CP and CPT symmetries by means of ortho-positronium decays into three photons. No zero expectation values for chosen correlations between ortho-positronium spin and momentum vectors of photons would imply the existence of physics phenomena beyond the standard model. Previous measurements resulted in violation amplitude parameters for CP and CPT symmetries consistent with zero, with an uncertainty of about 10−3. The J-PET detector allows to determine those values with better precision, thanks to the unique time and angular resolution combined with a high geometrical acceptance. Achieving the aforementioned is possible because of the application of polymer scintillators instead of crystals as detectors of annihilation quanta.
Keywords
