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Close coupling approach in optically allowed atomic transitions
Author(s) -
Bougouffa S.
Publication year - 2007
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.200610260
Subject(s) - physics , coupling (piping) , atomic physics , atom (system on chip) , scattering , range (aeronautics) , electron , close coupling , differential (mechanical device) , channel (broadcasting) , differential equation , energy (signal processing) , computational physics , quantum mechanics , materials science , computer science , computer network , metallurgy , composite material , thermodynamics , embedded system
In general the calculations of the cross sections in atomic collisions theory need a treatment of a system of coupled integro‐differential equations. We perform a numerical technique for calculations of electrons scattering with sodium atom. The cross sections are evaluated in the close coupling approach, where the problem is formulated in three coupling channel approximation. It is found that the three‐channel problem results are typically in good agreement with experiment and two‐channel calculations for intermediate energy range.The difference in the other range of energy can be assigned to the number of the used set of coupled differential equations in the 3 2 S ↞ 3 2 P transition of sodium.