Angular Distribution of Atomic Photoelectrons as a Function of Photon Field Polarization: Case of Ns-type Light Atoms

Issoufou Arzika Alio *

Department of Physics, Faculty of Science and Technology, Abdou Moumouni University, Niamey, Niger.

Almoustapha Aboubacar

Department of Physics, Faculty of Science and Technology, Abdou Moumouni University, Niamey, Niger and Climate, Environment and Materials Radiation Laboratory, (LCEMR), Abdou Moumouni University, Niamey, Niger.

*Author to whom correspondence should be addressed.


The angular distribution of the atomic photoelectrons gives us information on the evolution of the field of the photoelectrons in different directions concerning the incident direction of the electromagnetic radiation which is absorbed by the atom and its direction of polarization. Here, the angular distribution of atomic photoelectrons as a function of photon field polarization was studied theoretically using monocentric wave functions to investigate the influence of polarization on the theoretical results. A GEANT4 modeling calculation based on the Monte Carlo code was made on the helium atom. The calculations were performed at low energy above the atomic ionization threshold. The results obtained by analytical calculation for the total photoionization cross-section were compared with those obtained by a simulation calculation using GEANT4 modeling. A reasonable agreement was observed following this comparison for a range of energy considered in this study.

Keywords: Angular distribution, cross-section, photoelectron, polarization, GEANT4

How to Cite

Alio, Issoufou Arzika, and Almoustapha Aboubacar. 2022. “Angular Distribution of Atomic Photoelectrons As a Function of Photon Field Polarization: Case of Ns-Type Light Atoms”. Physical Science International Journal 26 (5):17-25.


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Manson ST. Adv Electron Electron Phys. 1977l;41, (1976):73;44.

Physics reference manual. Release Rev3; March 5. 2019;10.5.

Dias EWB, Chakraborty HS, Deshmukh PC, Manson ST, Hemmers O, Fisher G, et al. Breakdown of the independent particle approximation in High-Energy Photoionization‖. Phys Rev Lett. 1997; 78(24):4553-6.

Hansen DL, Hemmers O, Wang H, Lindle DW, Focke P, Sellin IA et al. Validity of the independent particle approximation: the exception, not the rule‖. Phys Rev A. 1999;60:R2641-2644.

Bates DR, Mon. Not. R. Astron. Sot. 1946;106:432.

Manson ST, Cooper JW. Photo-Ionization in the Soft x-Ray Range: 1 Z Dependence in a Central-Potential Model. Phys Rev. 1968;165(1):126-38..

Samson JAR. In: Mehlhorn W, editor. Handbuch der Physik. Berlin: Springer-Verlag. 1982;31:123-213.

Cooper J, Zare RN. Angular distribution of photoelectrons‖ J Chem Phys 48 Geltman S, Mahanth KT, Brittin WE, editors. New York: Gordon & Breach; and in Lectures in Theoretical Physics. 1968;XI-C:942-943, 317-37.

Atomic photoionization in the born approximation and angular distribution of photoelectrons Pranawa C. Deshmukh1*, Alak Banik2 and Dilip Angom3 1Indian Institute of Technology madras, Chennai 2Space applications centre ahmadabad; 3Physical research laboratory. Ahmadabad; January 9-28; 2011.

Yang CN. On the Angular Distribution in Nuclear Reactions and Coincidence Measurements. Phys Rev. 1948;74(7): 764-72.

Hoff G, Basaglia T, Choi Chansoo, Han MC, Kim CH, Kim HS et al. 1 CAPES Foundation. Methods and techniques for Monte Carlo Physics Validation. Brasilia, DF: Ministry of Education of Brazil. Brazil. 2015;70040-020.

Geant4 P. User’s guide for toolkit developers. Release 10.5. Rev3; March 5; 2019.

Book for application developers. Release 10.5. p. Rev3; March 5; 2019.

Basaglia T, Pia MG, Saracco P. Evolutions in photoelectric cross section calculations and their validation. IEEE Trans Nucl Sci. 2020;67(3):492-501.

Physics of atoms and moleculesB.H. Bransden and C.J Joachain.

Combet Farnoux F. Photoionization of heavy atoms: Theoretical study in a non-relativistic central potential model. J Phys France. 1969;30(7): 521-30.