Theoretical and Experimental Consequences of a Violation of the Pomeranchuk Theorem on Total Cross Sections at High Energies

1971 ◽  
Vol 3 (9) ◽  
pp. 2286-2288 ◽  
Author(s):  
R. J. Eden ◽  
G. D. Kaiser
Keyword(s):  
Cross Sections ◽  
Total Cross Sections ◽  
Pomeranchuk Theorem ◽  
High Energies

The Scattering of Positrons by Helium: Total Cross Sections up to 270 eV

1975 ◽  
Vol 53 (10) ◽  
pp. 962-967 ◽  
Author(s):  
B. Jaduszliwer ◽  
A. Nakashima ◽  
D. A. L. Paul
Keyword(s):  
Energy Range ◽  
Cross Section ◽  
Cross Sections ◽  
Born Approximation ◽  
Reasonable Agreement ◽  
Experimental Results ◽  
Formation Cross Section ◽  
Sum Rule ◽  
Total Cross Sections ◽  
High Energies

The total cross sections for the scattering of positrons by helium have been measured by the method of transmission in the 16 to 270 eV energy range. The experimental results are higher than those of Canter et al. but are in reasonable agreement with recent results of Griffith et al., and at high energies tend towards Born approximation calculations. The integral of the cross section over positron momentum is smaller than the sum rule estimate made by Bransden et al. A tentative value of (0.034 ± 0.017)πa02 is assigned to the positronium formation cross section at threshold.

scholarly journals Total cross sections for scattering of positron from CO, HCl, NH3 and CH4 at intermediate and high energies

2006 ◽  
Vol 55 (5) ◽  
pp. 2228
Author(s):  
Shi De-Heng ◽  
Sun Jin-Feng ◽  
Zhu Zun-Lue ◽  
Liu Yu-Fang
Keyword(s):  
Cross Sections ◽  
Total Cross Sections ◽  
High Energies

scholarly journals Total cross sections for the scattering of electrons from methane and chloromethanes at intermediate and high energies

2005 ◽  
Vol 54 (5) ◽  
pp. 2019
Author(s):  
Shi De-Heng ◽  
Sun Jin-Feng ◽  
Yang Xiang-Dong ◽  
Zhu Zun-Lue ◽  
Liu Yu-Fang
Keyword(s):  
Cross Sections ◽  
Total Cross Sections ◽  
High Energies
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