Volume 2, Issue 4
Elastic scattering of positron by gold atom

Kapil K. Sharma, Neerja SinghR. P. Vats

J. At. Mol. Sci., 2 (2011), pp. 294-304.

Published online: 2011-02

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  • Abstract

We present relativistic calculations of the differential, integrated elastic, momentum transfer total cross sections and spin polarization parameters for positrons scattered from Gold atom using a simple optical model potential to represent interaction between positron and target atoms in the energy range 2.0 - 500eV. In the present calculation we employ a parameter-free model potential for the correlation polarization and absorption potential as devised for positron-atom scattering. The theoretical results are obtained from relativistic approach based on solving the Dirac equation using Hartree-Fock and Dirac-Fock wave functions.

  • Keywords

relativistic calculation positron scattering

  • AMS Subject Headings

  • Copyright

COPYRIGHT: © Global Science Press

  • Email address

kapil.sharma@sau.ac.in (Kapil K. Sharma)

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@Article{JAMS-2-294, author = {Sharma , Kapil K. and Singh , Neerja and Vats , R. P.}, title = {Elastic scattering of positron by gold atom}, journal = {Journal of Atomic and Molecular Sciences}, year = {2011}, volume = {2}, number = {4}, pages = {294--304}, abstract = {We present relativistic calculations of the differential, integrated elastic, momentum transfer total cross sections and spin polarization parameters for positrons scattered from Gold atom using a simple optical model potential to represent interaction between positron and target atoms in the energy range 2.0 - 500eV. In the present calculation we employ a parameter-free model potential for the correlation polarization and absorption potential as devised for positron-atom scattering. The theoretical results are obtained from relativistic approach based on solving the Dirac equation using Hartree-Fock and Dirac-Fock wave functions.}, issn = {2079-7346}, doi = {https://doi.org/10.4208/jams.022611.031311a}, url = {http://global-sci.org/intro/article_detail/jams/8164.html} }
TY - JOUR T1 - Elastic scattering of positron by gold atom AU - Sharma , Kapil K. AU - Singh , Neerja AU - Vats , R. P. JO - Journal of Atomic and Molecular Sciences VL - 4 SP - 294 EP - 304 PY - 2011 DA - 2011/02 SN - 2 DO - http://doi.org/10.4208/jams.022611.031311a UR - https://global-sci.org/intro/article_detail/jams/8164.html KW - relativistic calculation KW - positron scattering AB - We present relativistic calculations of the differential, integrated elastic, momentum transfer total cross sections and spin polarization parameters for positrons scattered from Gold atom using a simple optical model potential to represent interaction between positron and target atoms in the energy range 2.0 - 500eV. In the present calculation we employ a parameter-free model potential for the correlation polarization and absorption potential as devised for positron-atom scattering. The theoretical results are obtained from relativistic approach based on solving the Dirac equation using Hartree-Fock and Dirac-Fock wave functions.
Kapil K. Sharma, Neerja Singh & R. P. Vats . (2019). Elastic scattering of positron by gold atom. Journal of Atomic and Molecular Sciences. 2 (4). 294-304. doi:10.4208/jams.022611.031311a
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