Open AccessStrong interaction effects in Σ- atoms
Author(s) -
Th. Petridou
Publication year - 2020
Publication title -
hnps advances in nuclear physics
Language(s) - English
Resource type - Journals
eISSN - 2654-0088
pISSN - 2654-007X
DOI - 10.12681/hnps.2875
Subject(s) - spin–orbit interaction , connection (principal bundle) , coupling (piping) , physics , orbit (dynamics) , atomic physics , spectral line , spin (aerodynamics) , matrix (chemical analysis) , shell (structure) , nuclear physics , quantum mechanics , chemistry , materials science , mathematics , engineering , thermodynamics , geometry , chromatography , metallurgy , composite material , aerospace engineering
An approximation is made for the Σ- atomic energy shifts and widths due to strong interaction central and spin-orbit parts of the potential with the use of the S-Matrix Approach, introduced by DelofF. This simplified model is applied in 12C_Σ in connection with the Σ-hypernuclear data: 12C_Σ. It is concluded that there is an essential influence of the strong interaction and especially of the nuclear spin-orbit coupling in the spectra of Σ-12C, mainly for the p-shell.