Feasibility Study of the Time Reversal Symmetry Tests in Decay of Metastable Positronium Atoms with the J-PET Detector. (12th December 2018)

• Record Type: Journal Article
• Authors: Gajos, A.; Curceanu, C.; Czerwiński, E.; Dulski, K.; Gorgol, M.; Gupta-Sharma, N.; Hiesmayr, B. C.; Jasińska, B.; Kacprzak, K.; Kapłon, Ł.; Kisielewska, D.; Korcyl, G.; Kowalski, P.; Kozik, T.; Krzemień, W.; Kubicz, E.; Mohammed, M.; Niedźwiecki, Sz.; Pałka, M.; Pawlik-Niedźwiecka, M.; Raczyński, L.; Raj, J.; Rudy, Z.; Sharma, S.; Shivani, ; Shopa, R.; Silarski, M.; Skurzok, M.; Wiślicki, W.; Zgardzińska, B.; Zieliński, M.; Moskal, P.;
• Other Names: Urbanowski Krzysztof Academic Editor.
• Is Part Of: Advances in high energy physics. Volume 2018(2018)
• Publication Date: 2018-12-12
• Subjects: Particles (Nuclear physics) -- Periodicals; Particles (Nuclear physics); Periodicals; 539.76
• DOI: 10.1155/2018/8271280
• Languages: English
• ISSNs: 1687-7357

Abstract

Abstract : This article reports on the feasibility of testing of the symmetry under reversal in time in a purely leptonic system constituted by positronium atoms using the J-PET detector. The present state of T symmetry tests is discussed with an emphasis on the scarcely explored sector of leptonic systems. Two possible strategies of searching for manifestations of T violation in nonvanishing angular correlations of final state observables in the decay of metastable triplet states of positronium available with J-PET are proposed and discussed. Results of a pilot measurement with J-PET and assessment of its performance in reconstruction of three-photon decays are shown along with an analysis of its impact on the sensitivity of the detector for the determination of T -violation sensitive observables.