Volume 141, Number 4, February 2023
|Number of page(s)||4|
|Section||Nuclear and plasma physics, particles and fields|
|Published online||22 February 2023|
Revisiting the radiative and non-radiative decays of di-positronium (Ps2)
1 Department of Physics, Quaid-i-Azam University - Islamabad, Pakistan
2 Department of Physics, University of Alberta - Edmonton, Alberta T6G 2E1, Canada
(a) E-mail: firstname.lastname@example.org (corresponding author)
Received: 3 October 2022
Accepted: 8 February 2023
For the first time correct results of the decay rates of to two photons and into the final state electron-positron pair (radiationless) were calculated using the spin-singlet configuration of (see Aslam M. J. et al., Phys. Rev. A, 104 (2021) 052803). We revisited the calculation of these decays without considering any particular spin orientation of initial state , and performed an automated calculation using the Mathematica-based computational packages FeynArts and FeynCalc. Our results are consistent with those of Aslam et al., affirming that the only contribution to these rates comes from singlet-singlet spin orientations of pairs of initial state electrons and positrons in .
© 2023 EPLA
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.