scholarly journals Coulomb distortion and medium corrections in nucleon-removal reactions

2013 ◽  
Vol 87 (2) ◽  
Author(s):  
M. Karakoc ◽  
A. Banu ◽  
C. A. Bertulani ◽  
L. Trache
Keyword(s):  
Coulomb Distortion

Coulomb distortion effects in (e,e’γ) processes

1991 ◽  
Vol 44 (6) ◽  
pp. 2694-2708 ◽  
Author(s):  
Indu Talwar ◽  
Amirul Hoque ◽  
L. E. Wright
Keyword(s):  
Coulomb Distortion

scholarly journals Approximate Coulomb distortion effects in (e,e′p) reactions

1997 ◽  
Vol 56 (1) ◽  
pp. 302-310 ◽  
Author(s):  
K. Kim ◽  
L. Wright
Keyword(s):  
Coulomb Distortion

Erratum: Coulomb distortion effects in (e,e′γ) processes

1992 ◽  
Vol 46 (2) ◽  
pp. 822-822 ◽  
Author(s):  
Indu Talwar ◽  
Amirul Hoque ◽  
L. E. Wright
Keyword(s):  
Coulomb Distortion

Measured Coulomb corrections to the pair production cross sections of Ta and Bi

1981 ◽  
Vol 59 (7) ◽  
pp. 914-923 ◽  
Author(s):  
N. K. Sherman ◽  
G. M. Ewart
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Production Cross ◽  
Form Factors ◽  
Photon Absorption ◽  
Coulomb Correction ◽  
Electron Pairs ◽  
Experimental Values ◽  
Semi Empirical ◽  
Coulomb Distortion

The cross sections for production of electron pairs on Ta and Bi nuclei by photons of energies between 3 and 30 MeV were deduced from total cross sections for photon absorption. Comparison with pair cross section values calculated in the plane-wave approximation and corrected for screening gave experimental values of the further correction required to account for Coulomb distortion. Above 15 MeV the experimental values of the Coulomb correction differ from values calculated using a semi-empirical recipe due to Maximon and Gimm, but agree fairly well with a recipe due to Øverbø up to 20 MeV, where they begin to differ. Either of these Coulomb correction formulas combined with screening corrections calculated using relativistic atomic form factors allows the pair cross section of Ta or Bi to be calculated accurately enough to reproduce the total photon cross section to about 1%. Neither formula can be relied upon to determine an unknown photonuclear cross section to useful accuracy from a measured total cross section.

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