Feasibility studies of the polarization of photons beyond the optical wavelength regime with the J-PET detector

doi:10.1140/epjc/s10052-018-6461-1

Feasibility studies of the polarization of photons beyond the optical wavelength regime with the J-PET detector

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Feasibility studies of the polarization of photons beyond the optical wavelength regime with the J-PET detector

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punktacja MEiN [2018 A]: 40

title:	Feasibility studies of the polarization of photons beyond the optical wavelength regime with the J-PET detector
author:	Moskal Paweł , Krawczyk Nikodem , Hiesmayr B. C., Curceanu C., Czerwiński Eryk , Dulski Kamil , Gajos Aleksander , Gorgol M., Del Grande R., Jasińska B., Kacprzak K., Kapłon Łukasz , Kisielewska Daria , Klimaszewski K., Korcyl Grzegorz , Kowalski P., Kozik Tomasz , Krzemień Wojciech , Kubicz Ewelina , Mohammed Muhsin , Niedźwiecki Szymon , Pałka Marek , Pawlik-Niedźwiecka Monika , Raczyński L., Raj Juhi , Rudy Zbigniew , Sharma Sushil , Silarski Michał , Shivani Shivani , Shopa R. Y., Skurzok Magdalena , Wiślicki W., Zgardzińska B.
journal title:	The European Physical Journal. C, Particles and Fields
volume:	78
issue:	11
date of publication :	2018
article ID:	970
ISSN:	1434-6044
eISSN:	1434-6052
DOI:	10.1140/epjc/s10052-018-6461-1
language:	English
journal language:	English
abstract in English:	J-PET is a detector optimized for registration of photons from the electron–positron annihilation via plastic scintillators where photons interact predominantly via Compton scattering. Registration of both primary and scattered photons enables to determinate the linear polarization of the primary photon on the event by event basis with a certain probability. Here we present quantitative results on the feasibility of such polarization measurements of photons from the decay of positronium with the J-PET and explore the physical limitations for the resolution of the polarization determination of 511 keV photons via Compton scattering. For scattering angles of about 82 ∘ (where the best contrast for polarization measurement is theoretically predicted) we find that the single event resolution for the determination of the polarization is about 40 ∘ (predominantly due to properties of the Compton effect). However, for samples larger than ten thousand events the J-PET is capable of determining relative average polarization of these photons with the precision of about few degrees. The obtained results open new perspectives for studies of various physics phenomena such as quantum entanglement and tests of discrete symmetries in decays of positronium and extend the energy range of polarization measurements by five orders of magnitude beyond the optical wavelength regime.
affiliation:	Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego, Wydział Fizyki, Astronomii i Informatyki Stosowanej : Zakład Technologii Informatycznych
type:	journal article
subtype:	academic paper