Image de couverture de livre

Discrete symmetries tested at 10$^{-4}$ precision using linear polarization of photons from positronium annihilations

Fuente: arXiv

Enregistré dans:

Détails bibliographiques
Auteurs principaux:	Moskal, Paweł, Czerwiński, Eryk, Raj, Juhi, Bass, Steven D., Beyene, Ermias Y., Chug, Neha, Coussat, Aurélien, Curceanu, Catalina, Dadgar, Meysam, Das, Manish, Dulski, Kamil, Gajos, Aleksander, Gorgol, Marek, Hiesmayr, Beatrix C., Jasińska, Bożena, Kacprzak, Krzysztof, Kaplanoglu, Tevfik, Kapłon, Łukasz, Klimaszewski, Konrad, Konieczka, Paweł, Korcyl, Grzegorz, Kozik, Tomasz, Krzemień, Wojciech, Kumar, Deepak, Moyo, Simbarashe, Mryka, Wiktor, Niedźwiecki, Szymon, Parzych, Szymon, del Río, Elena Pérez, Raczyński, Lech, Sharma, Sushil, Choudhary, Shivani, Shopa, Roman Y., Silarski, Michał, Skurzok, Magdalena, Stępień, Ewa Ł., Tanty, Pooja, Ardebili, Faranak Tayefi, Ardebili, Keyvan Tayefi, Eliyan, Kavya Valsan, Wiślicki, Wojciech
Format:	Preprint
Publié:	2024
Sujets:	High Energy Physics - Phenomenology Nuclear Experiment
Accès en ligne:	Acceder al recurso
Tags:	Ajouter un tag Pas de tags, Soyez le premier à ajouter un tag!

_version_	1866913203549634560
author	Moskal, Paweł Czerwiński, Eryk Raj, Juhi Bass, Steven D. Beyene, Ermias Y. Chug, Neha Coussat, Aurélien Curceanu, Catalina Dadgar, Meysam Das, Manish Dulski, Kamil Gajos, Aleksander Gorgol, Marek Hiesmayr, Beatrix C. Jasińska, Bożena Kacprzak, Krzysztof Kaplanoglu, Tevfik Kapłon, Łukasz Klimaszewski, Konrad Konieczka, Paweł Korcyl, Grzegorz Kozik, Tomasz Krzemień, Wojciech Kumar, Deepak Moyo, Simbarashe Mryka, Wiktor Niedźwiecki, Szymon Parzych, Szymon del Río, Elena Pérez Raczyński, Lech Sharma, Sushil Choudhary, Shivani Shopa, Roman Y. Silarski, Michał Skurzok, Magdalena Stępień, Ewa Ł. Tanty, Pooja Ardebili, Faranak Tayefi Ardebili, Keyvan Tayefi Eliyan, Kavya Valsan Wiślicki, Wojciech
author_facet	Moskal, Paweł Czerwiński, Eryk Raj, Juhi Bass, Steven D. Beyene, Ermias Y. Chug, Neha Coussat, Aurélien Curceanu, Catalina Dadgar, Meysam Das, Manish Dulski, Kamil Gajos, Aleksander Gorgol, Marek Hiesmayr, Beatrix C. Jasińska, Bożena Kacprzak, Krzysztof Kaplanoglu, Tevfik Kapłon, Łukasz Klimaszewski, Konrad Konieczka, Paweł Korcyl, Grzegorz Kozik, Tomasz Krzemień, Wojciech Kumar, Deepak Moyo, Simbarashe Mryka, Wiktor Niedźwiecki, Szymon Parzych, Szymon del Río, Elena Pérez Raczyński, Lech Sharma, Sushil Choudhary, Shivani Shopa, Roman Y. Silarski, Michał Skurzok, Magdalena Stępień, Ewa Ł. Tanty, Pooja Ardebili, Faranak Tayefi Ardebili, Keyvan Tayefi Eliyan, Kavya Valsan Wiślicki, Wojciech
contents	Discrete symmetries play an important role in particle physics with violation of CP connected to the matter-antimatter imbalance in the Universe. We report the most precise test of P, T and CP invariance in decays of ortho-positronium, performed with methodology involving polarization of photons from these decays. Positronium, the simplest bound state of an electron and positron, is of recent interest with discrepancies reported between measured hyperfine energy structure and theory at the level of $10^{-4}$ signaling a need for better understanding of the positronium system at this level. We test discrete symmetries using photon polarizations determined via Compton scattering in the dedicated J-PET tomograph on an event-by-event basis and without the need to control the spin of the positronium with an external magnetic field, in contrast to previous experiments. Our result is consistent with QED expectations at the level of 0.0007 and one standard deviation.
format	Preprint
id	arxiv_https___arxiv_org_abs_2401_12092
institution	arXiv
publishDate	2024
record_format	arxiv
spellingShingle	Discrete symmetries tested at 10$^{-4}$ precision using linear polarization of photons from positronium annihilations Moskal, Paweł Czerwiński, Eryk Raj, Juhi Bass, Steven D. Beyene, Ermias Y. Chug, Neha Coussat, Aurélien Curceanu, Catalina Dadgar, Meysam Das, Manish Dulski, Kamil Gajos, Aleksander Gorgol, Marek Hiesmayr, Beatrix C. Jasińska, Bożena Kacprzak, Krzysztof Kaplanoglu, Tevfik Kapłon, Łukasz Klimaszewski, Konrad Konieczka, Paweł Korcyl, Grzegorz Kozik, Tomasz Krzemień, Wojciech Kumar, Deepak Moyo, Simbarashe Mryka, Wiktor Niedźwiecki, Szymon Parzych, Szymon del Río, Elena Pérez Raczyński, Lech Sharma, Sushil Choudhary, Shivani Shopa, Roman Y. Silarski, Michał Skurzok, Magdalena Stępień, Ewa Ł. Tanty, Pooja Ardebili, Faranak Tayefi Ardebili, Keyvan Tayefi Eliyan, Kavya Valsan Wiślicki, Wojciech High Energy Physics - Phenomenology Nuclear Experiment Discrete symmetries play an important role in particle physics with violation of CP connected to the matter-antimatter imbalance in the Universe. We report the most precise test of P, T and CP invariance in decays of ortho-positronium, performed with methodology involving polarization of photons from these decays. Positronium, the simplest bound state of an electron and positron, is of recent interest with discrepancies reported between measured hyperfine energy structure and theory at the level of $10^{-4}$ signaling a need for better understanding of the positronium system at this level. We test discrete symmetries using photon polarizations determined via Compton scattering in the dedicated J-PET tomograph on an event-by-event basis and without the need to control the spin of the positronium with an external magnetic field, in contrast to previous experiments. Our result is consistent with QED expectations at the level of 0.0007 and one standard deviation.
title	Discrete symmetries tested at 10$^{-4}$ precision using linear polarization of photons from positronium annihilations
topic	High Energy Physics - Phenomenology Nuclear Experiment
url	https://arxiv.org/abs/2401.12092