Two-photon decay of P-wave positronium: a tutorial
High Energy Physics - Phenomenology
2019-07-10 v1 High Energy Physics - Theory
Abstract
A detailed exposition of two-photon decays of P-wave positronium is given to fill an existing gap in the pedagogical literature. Annihilation decay rates of P-wave positronium are negligible compared to the rates of radiative electric dipole transitions to the ground state. This circumstance makes such decays experimentally inaccessible. However the situation is different for quarkonium and the experimental and theoretical research of two-photon and two-gluon decays of P-wave quarkonia is a still flourishing field.
Keywords
Cite
@article{arxiv.1812.00152,
title = {Two-photon decay of P-wave positronium: a tutorial},
author = {Abhijit Sen and Zurab K. Silagadze},
journal= {arXiv preprint arXiv:1812.00152},
year = {2019}
}
Comments
12 pages, 1 figure, to be published in Can. J. Phys