Discrepancy in total cross sections of positron-impact ionization of hydrogen

1992 ◽  
Vol 167 (3) ◽  
pp. 277-279 ◽  
Author(s):  
Shih-Wei Hsu ◽  
Tien-Yow Kuo ◽  
Chi-ming J. Chen ◽  
Keh-Ning Huang
Keyword(s):  
Cross Sections ◽  
Impact Ionization ◽  
Positron Impact ◽  
Total Cross Sections

Positron impact ionization of alkali atoms

2020 ◽  
Vol 65 (1-2) ◽  
pp. 5-10
Author(s):  
R.I. Campeanu ◽  
Keyword(s):  
Cross Sections ◽  
Impact Ionization ◽  
Experimental Measurements ◽  
Positron Impact ◽  
Total Cross Sections ◽  
Alkali Atoms ◽  
Positron Collisions

"The models CPE and CPE4, which were successfully used in positron impact ionization studies, are applied to positron impact ionization of Li, Na and K. This work produces total cross sections which are in agreement with the existing theoretical papers and shows the necessity for experimental measurements of these processes. Keywords: Positron collisions; Ionization of Atoms "

scholarly journals Few Body Effects in the Electron and Positron Impact Ionization of Atoms

Atoms ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 33
Author(s):  
R.I. Campeanu ◽  
Colm T. Whelan
Keyword(s):  
Electron Impact ◽  
Cross Sections ◽  
Differential Cross ◽  
Impact Ionization ◽  
Inert Gas ◽  
Interference Effects ◽  
Positron Impact ◽  
Competing Interactions ◽  
Energy Sharing

Triple differential cross sections (TDCS) are presented for the electron and positron impact ionization of inert gas atoms in a range of energy sharing geometries where a number of significant few body effects compete to define the shape of the TDCS. Using both positrons and electrons as projectiles has opened up the possibility of performing complementary studies which could effectively isolate competing interactions that cannot be separately detected in an experiment with a single projectile. Results will be presented in kinematics where the electron impact ionization appears to be well understood and using the same kinematics positron cross sections will be presented. The kinematics are then varied in order to focus on the role of distortion, post collision interaction (pci), and interference effects.

Differential and total cross sections for antiproton-impact ionization of atomic hydrogen and helium

2009 ◽  
Vol 79 (4) ◽  
Author(s):  
M. McGovern ◽  
D. Assafrão ◽  
J. R. Mohallem ◽  
Colm T. Whelan ◽  
H. R. J. Walters
Keyword(s):  
Cross Sections ◽  
Atomic Hydrogen ◽  
Impact Ionization ◽  
Total Cross Sections

Absolute partial and total cross sections for electron-impact ionization of argon from threshold to 1000 eV

1995 ◽  
Vol 52 (2) ◽  
pp. 1115-1124 ◽  
Author(s):  
H. C. Straub ◽  
P. Renault ◽  
B. G. Lindsay ◽  
K. A. Smith ◽  
R. F. Stebbings
Keyword(s):  
Electron Impact ◽  
Cross Sections ◽  
Impact Ionization ◽  
Electron Impact Ionization ◽  
Total Cross Sections

scholarly journals Electron and Positron Impact Ionization Cross Sections of O and Hg Atoms

2018 ◽  
Vol 5 (3) ◽  
Author(s):  
Manish Pindariya ◽  
Asha S. Chaudhari ◽  
Foram M. Joshi ◽  
K. N. Joshipura ◽  
Harshit N. Kothari
Keyword(s):  
Cross Sections ◽  
Impact Ionization ◽  
Positron Impact ◽  
Ionization Cross ◽  
Ionization Cross Sections

Relativistic cross sections of positron-impact ionization of hydrogenic ions

1993 ◽  
Vol 48 (1) ◽  
pp. 357-363 ◽  
Author(s):  
Tien-Yow Kuo ◽  
Chi-Ming J. Chen ◽  
Shih-Wei Hsu ◽  
Keh-Ning Huang
Keyword(s):  
Cross Sections ◽  
Impact Ionization ◽  
Positron Impact ◽  
Hydrogenic Ions
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