Results 11 to 20 of about 4,639 (219)

On the positronium g-factor [PDF]

The European Physical Journal D, 2023
Submitted to ...
J. Agil, R. Battesti, C. Rizzo, D. Bakalov   +3 more
openaire   +3 more sources

Tests of discrete symmetries in positronium decays with the J-PET detector [PDF]

EPJ Web of Conferences, 2019
As a relatively simple and purely leptonic state positronium constitutes a unique system to study discrete symmetries with precision limited only by the effects due to the weak interaction and photon-photon scattering.
Silarski Michał
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Positronium Physics and Biomedical Applications [PDF]

, 2023
Positronium is the simplest bound state, built of an electron and a positron. Studies of positronium in vacuum and its decays in medium tell us about Quantum Electrodynamics, QED, and about the structure of matter and biological processes of living ...
Bass, Steven D., Stepien, Ewa, Ewa Stępień, Mariazzi, Sebastiano, Bass, Steven, Pawel Moskal, Moskal, P., Moskal, Paweł, Steven D. Bass, Moskal, Pawel, Sebastiano Mariazzi   +10 more
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Perspectives on translation of positronium imaging into clinics

Frontiers in Physics, 2022
The image of positronium properties created in the patient’s body during PET examination tells about the inter- and intra-molecular structure of the tissue and the concentration of bio-active molecules in the tissue [2–4].
Pawel Moskal, Pawel Moskal, Pawel Moskal, Ewa Ł. Stępień, Ewa Ł. Stępień, Ewa Ł. Stępień   +5 more
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Performance assessment of the 2 γpositronium imaging with the total-body PET scanners

EJNMMI Physics, 2020
Purpose In living organisms, the positron-electron annihilation (occurring during the PET imaging) proceeds in about 30% via creation of a metastable ortho-positronium atom.
P. Moskal, D. Kisielewska, R. Y. Shopa, Z. Bura, J. Chhokar, C. Curceanu, E. Czerwiński, M. Dadgar, K. Dulski, J. Gajewski, A. Gajos, M. Gorgol, R. Del Grande, B. C. Hiesmayr, B. Jasińska, K. Kacprzak, A. Kamińska, Ł Kapłon, H. Karimi, G. Korcyl, P. Kowalski, N. Krawczyk, W. Krzemień, T. Kozik, E. Kubicz, P. Małczak, M. Mohammed, Sz. Niedźwiecki, M. Pałka, M. Pawlik-Niedźwiecka, M. Pędziwiatr, L. Raczyński, J. Raj, A. Ruciński, S. Sharma, S. Shivani, M. Silarski, M. Skurzok, E. Ł. Stępień, S. Vandenberghe, W. Wiślicki, B. Zgardzińska   +41 more
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Two-loop electron factor contribution to lamb shift in muonium and positronium

Physics Letters B, 2023
We calculate hard spin-independent contributions to energy levels in muonium and positronium which are due to radiatively corrected electron factor insertion in two-photon exchange diagrams.
Michael I. Eides, Valery A. Shelyuto
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Resonances in positronium–rubidium and positronium–cesium scattering [PDF]

Physics Letters A, 2001
8 pages, 5 ...
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Three-loop corrections to lamb shift in positronium: Electron factor and polarization

Physics Letters B, 2022
Hard spin-independent three-loop radiative contributions to energy levels in positronium generated by the two-photon-exchange diagrams with one-loop radiative insertions in the fermion lines and exchanged photons are calculated.
Michael I. Eides, Valery A. Shelyuto
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Collision of a Positron with the Capture of an Electron from Lithium and the Effect of a Magnetic Field on the Particles Balance

Chemosensors, 2021
The processes of scattering slow positrons with the possible formation of positronium play an important role in the diagnosis of both composite materials, including semiconductor materials, and for the analysis of images obtained by positron tomography ...
Elena V. Orlenko, Alexandr V. Evstafev, Fedor E. Orlenko   +2 more
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Positronium Decay into a Photon and Neutrinos [PDF]

, 2017
We determine the rates, photon energy and angular distributions of positronium decays into a photon and a neutrino-antineutrino pair, $\text{Ps} \to \gamma \nu_\ell \bar\nu_\ell$.
Pokraka, Andrzej
core   +1 more source