Positron scattering from hydrogen atom with screened Coulomb potentials

Journal Article · Wed Mar 05 00:00:00 EST 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4866928· OSTI ID:22266190

Ghoshal, Arijit ^[1]; Nayek, Sujay ^[2]; Kamali, M. Z. M. ^[3]; Ratnavelu, K. ^[4]

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1. Department of Mathematics, Burdwan University, Golapbag, Burdwan 713 104, West Bengal, India and Institute of Mathematical Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur (Malaysia)
2. Department of Mathematics, Burdwan University, Golapbag, Burdwan 713 104, West Bengal (India)
3. Centre for Foundation Studies in Sciences, University of Malaya, 50603 Kuala Lumpur (Malaysia)
4. Institute of Mathematical Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur (Malaysia)

Elastic positron-hydrogen collisions with screened Coulomb potentials have been investigated using a second-order distorted wave Born approximation in the momentum space. Two types of potentials have been considered, namely, static screened Coulomb potential and exponential cosine-screened Coulomb potential. Using a simple variationally determined hydrogenic wave function it has been possible to obtain the scattering amplitude in a closed form. A detailed study has been made on the differential and total cross sections in the energy range 20–300 eV.

• OSTI ID: 22266190
• Journal Information: AIP Conference Proceedings, Vol. 1588, Issue 1; Conference: 4. international meeting on frontiers in physics, Kuala Lumpur (Malaysia), 27-30 Aug 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COLLISIONS
COULOMB FIELD
DWBA
EV RANGE
HYDROGEN
POSITRONS
SCATTERING AMPLITUDES
TOTAL CROSS SECTIONS
WAVE FUNCTIONS