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Studies of discrete symmetries in a purely leptonic system using the Jagiellonian Positron Emission Tomograph

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Studies of discrete symmetries in a purely leptonic system using the Jagiellonian Positron Emission Tomograph

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dc.contributor.author Moskal, Paweł [SAP11015350] pl
dc.contributor.author Alfs, Dominika pl
dc.contributor.author Bednarski, Tomasz [USOS62432] pl
dc.contributor.author Białas, Piotr [SAP11015544] pl
dc.contributor.author Curceanu, C. pl
dc.contributor.author Czerwiński, Eryk [SAP13037062] pl
dc.contributor.author Dulski, Kamil [USOS145811] pl
dc.contributor.author Gajos, Aleksander [USOS96183] pl
dc.contributor.author Głowacz, Bartosz [SAP13903053] pl
dc.contributor.author Gupta-Sharma, Neha [USOS182180] pl
dc.contributor.author Gorgol, M. pl
dc.contributor.author Hiesmayr, B. C. pl
dc.contributor.author Jasińska, B. pl
dc.contributor.author Kisielewska, Daria [USOS115843] pl
dc.contributor.author Khreptak, Aleksander [USOS214786] pl
dc.contributor.author Korcyl, Grzegorz [SAP14010657] pl
dc.contributor.author Kowalski, P. pl
dc.contributor.author Krzemień, Wojciech [SAP12018791] pl
dc.contributor.author Krawczyk, Nikodem [USOS111830] pl
dc.contributor.author Kubicz, Ewelina [USOS111657] pl
dc.contributor.author Mohammed, Muhsin [USOS182392] pl
dc.contributor.author Niedźwiecki, Szymon [SAP14009545] pl
dc.contributor.author Pawlik-Niedźwiecka, Monika [USOS133128] pl
dc.contributor.author Raczyński, L. pl
dc.contributor.author Rudy, Zbigniew [SAP11010608] pl
dc.contributor.author Silarski, Michał [SAP13036814] pl
dc.contributor.author Smyrski, Jerzy [SAP11011139] pl
dc.contributor.author Wieczorek, Anna [SAP14012262] pl
dc.contributor.author Wiślicki, W. pl
dc.contributor.author Zgardzińska, B. pl
dc.contributor.author Zieliński, Marcin [SAP13036834] pl
dc.date.accessioned 2017-02-07T15:09:26Z
dc.date.available 2017-02-07T15:09:26Z
dc.date.issued 2016 pl
dc.identifier.issn 2101-6275 pl
dc.identifier.uri http://ruj.uj.edu.pl/xmlui/handle/item/37217
dc.language eng pl
dc.rights Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa *
dc.rights.uri http://creativecommons.org/licenses/by/4.0/pl/legalcode *
dc.title Studies of discrete symmetries in a purely leptonic system using the Jagiellonian Positron Emission Tomograph pl
dc.type JournalArticle pl
dc.description.additional Autorka Daria Kisielewska podpisana jako Daria Kamińska. pl
dc.abstract.en Discrete symmetries such as parity (P), charge-conjugation (C) and time reversal (T) are of fundamental importance in physics and cosmology. Breaking of charge conjugation symmetry (C) and its combination with parity (CP) constitute necessary conditions for the existence of the asymmetry between matter and antimatter in the observed Universe. The presently known sources of discrete symmetries violations can account for only a tiny fraction of the excess of matter over antimatter. So far CP and T symmetries violations were observed only for systems involving quarks and they were never reported for the purely leptonic objects. In this article we describe briefly an experimental proposal for the test of discrete symmetries in the decays of positronium atom which is made exclusively of leptons. The experiments are conducted by means of the Jagiellonian Positron Emission Tomograph (J-PET) which is constructed from strips of plastic scintillators enabling registration of photons from the positronium annihilation. J-PET tomograph together with the positronium target system enable to measure expectation values for the discrete symmetries odd operators constructed from (i) spin vector of the ortho-positronium atom, (ii) momentum vectors of photons originating from the decay of positronium, and (iii) linear polarization direction of annihilation photons. Linearly polarized positronium will be produced in the highly porous aerogel or polymer targets, exploiting longitudinally polarized positrons emitted by the sodium 22Na isotope. Information about the polarization vector of orthopositronium will be available on the event by event basis and will be reconstructed from the known position of the positron source and the reconstructed position of the orthopositronium annihilation. In 2016 the first tests and calibration runs are planned, and the data collection with high statistics will commence in the year 2017. pl
dc.description.volume 130 pl
dc.description.conftype international pl
dc.identifier.doi 10.1051/epjconf/201613007015 pl
dc.identifier.eissn 2100-014X pl
dc.title.journal EPJ Web of Conferences pl
dc.title.volume MESON 2016 – 14th International Workshop on Meson Production, Properties and Interaction : Kraków, Poland, June 2-7, 2016 pl
dc.language.container eng pl
dc.affiliation Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego pl
dc.affiliation Wydział Fizyki, Astronomii i Informatyki Stosowanej : Zakład Technologii Gier pl
dc.subtype ConferenceProceedings pl
dc.conference MESON 2016 – 14th International Workshop on Meson Production, Properties and Interaction; 2016-06-02; 2016-06-07; Kraków; Polska; indeksowana w Web of Science; indeksowana w Scopus; ; pl
dc.identifier.articleid 07015 pl
dc.rights.original CC-BY; otwarte czasopismo; ostateczna wersja wydawcy; w momencie opublikowania; 0; pl
dc.identifier.project ROD UJ / P pl


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Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa Except where otherwise noted, this item's license is described as Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa