Distorted Wave Approximation for Scattering Phase-Shifts

Nature ◽  
1960 ◽  
Vol 187 (4737) ◽  
pp. 585-586 ◽  
Author(s):  
P. SWAN
Keyword(s):  
Phase Shifts ◽  
Distorted Wave ◽  
Wave Approximation ◽  
Scattering Phase ◽  
Scattering Phase Shifts

scholarly journals On the Accuracy of the Tan hl Distorted Wave Approximation for Scattering Phase-Shifts

1963 ◽  
Vol 16 (2) ◽  
pp. 177 ◽  
Author(s):  
P Swan
Keyword(s):  
Wave Function ◽  
Form Factor ◽  
Variational Principle ◽  
Asymptotic Form ◽  
Phase Shifts ◽  
Distorted Wave ◽  
Variable Parameters ◽  
Wave Approximation ◽  
Scattering Phase ◽  
Scattering Phase Shifts

The distorted wave approximation for tan ?l involves a wave function distorted from its asymptotic form at r � 8 by a form factor g1(r). Schwinger's variational principle is adapted to show that increasing the number of variable parameters in g1(r) does not necessarily improve the firs

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