Open AccessMANIFESTATION OF AN EXCITED ELECTRON IN e⁺e¯ → γγ REACTION
Author(s) -
G. I. Gakh,
M. I. Konchatnij,
N. P. Merenkov,
A. G. Gakh
Publication year - 2021
Publication title -
problems of atomic science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.216
H-Index - 17
eISSN - 1562-6016
pISSN - 1682-9344
DOI - 10.46813/2021-133-014
Subject(s) - excited state , electron , atomic physics , physics , polarization (electrochemistry) , electronic correlation , chemistry , quantum mechanics
The differential cross section and some polarization observables have been calculated for the e⁺e¯ → γγ reaction taking into account the contribution of the excited electron. The spin correlation coefficients were calculated for the case when both beams are polarized. We consider two approaches for the excited electron contribution: the eу → γγ contact interaction and the exchange of the excited electron in t- and u-channels. Numerical estimations are given for the excited electron contribution to the differential cross section and spin correlation coefficients for vari-ous values of the electron beam energy and excited electron mass.