TOWARDS TIME REVERSAL SYMMETRY TEST WITH o-Ps DECAYS USING THE J-PET DETECTOR.
- Resource Type
- Article
- Authors
- RAJ, JUHI; DULSKI, KAMIL; CZERWIŃSKI, ERYK
- Source
- Acta Physica Polonica B. Jan2020, Vol. 51 Issue 1, p149-152. 4p.
- Subject
- *TIME reversal
*DISCRETE symmetries
*POSITRONIUM
*SYMMETRY
*DETECTORS
*PHOTONS
- Language
- ISSN
- 0587-4254
One of the features of the triplet state of positronium (ortho-positronium) atoms is its relatively longer lifetime when compared to the singlet states of positronium (para-positronium) atoms. The most probable decay of orthopositronium is into three annihilation photons. In order to test the discrete symmetry using the time-reversal symmetry odd-operator, it is important to identify ortho-positronium decay. Identification of the decay of orthopositronium atoms by measuring the positronium annihilation lifetime with the Jagiellonian-Positron Emission Tomograph (J-PET) is presented in this article. [ABSTRACT FROM AUTHOR]