Study of Electron and Positron Elastic Scattering from Hydrogen Sulphide Using Analytically Obtained Static Potential
A detailed study of elastic scattering of electrons and positrons from a hydrogen sulphide (H<sub>2</sub>S) molecule is presented using the method of partial wave phase shift analysis with suitably chosen complex optical potentials. The important aspect of our present work is that we uni...
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| Format: | Article |
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MDPI AG
2020-11-01
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| Online Access: | https://www.mdpi.com/2218-2004/8/4/83 |
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| author | Dibyendu Mahato Lalita Sharma Rajesh Srivastava |
| author_facet | Dibyendu Mahato Lalita Sharma Rajesh Srivastava |
| author_sort | Dibyendu Mahato |
| collection | DOAJ |
| description | A detailed study of elastic scattering of electrons and positrons from a hydrogen sulphide (H<sub>2</sub>S) molecule is presented using the method of partial wave phase shift analysis with suitably chosen complex optical potentials. The important aspect of our present work is that we uniquely obtain static potential in an analytical form and use it along with exchange (only for electron), polarization and purely imaginary absorption potentials to define the complex optical potential. The static potential is evaluated by obtaining charge density from the H<sub>2</sub>S molecule using the molecular wavefunction represented through an accurate analytical form of the Gaussian orbitals. The primary aim of our study is to test our present approach, as applied to the electron and positron scattering from H<sub>2</sub>S. Therefore, the results for electron and positron impact differential, integral, momentum-transfer, absorption and total cross sections are obtained for the incident energies in the range of 10–500 eV. Comparisons of these different types of cross section results with the available measurements and other calculations show good agreement, which suggests the applicability of our present approach. |
| first_indexed | 2024-03-10T14:46:56Z |
| format | Article |
| id | doaj.art-9540e3c41d75496a97bd5b7f77000353 |
| institution | Directory Open Access Journal |
| issn | 2218-2004 |
| language | English |
| last_indexed | 2024-03-10T14:46:56Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
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| spelling | doaj.art-9540e3c41d75496a97bd5b7f770003532023-11-20T21:21:20ZengMDPI AGAtoms2218-20042020-11-01848310.3390/atoms8040083Study of Electron and Positron Elastic Scattering from Hydrogen Sulphide Using Analytically Obtained Static PotentialDibyendu Mahato0Lalita Sharma1Rajesh Srivastava2Department of Physics, Indian Institute of Technology, Roorkee 247667, IndiaDepartment of Physics, Indian Institute of Technology, Roorkee 247667, IndiaDepartment of Physics, Indian Institute of Technology, Roorkee 247667, IndiaA detailed study of elastic scattering of electrons and positrons from a hydrogen sulphide (H<sub>2</sub>S) molecule is presented using the method of partial wave phase shift analysis with suitably chosen complex optical potentials. The important aspect of our present work is that we uniquely obtain static potential in an analytical form and use it along with exchange (only for electron), polarization and purely imaginary absorption potentials to define the complex optical potential. The static potential is evaluated by obtaining charge density from the H<sub>2</sub>S molecule using the molecular wavefunction represented through an accurate analytical form of the Gaussian orbitals. The primary aim of our study is to test our present approach, as applied to the electron and positron scattering from H<sub>2</sub>S. Therefore, the results for electron and positron impact differential, integral, momentum-transfer, absorption and total cross sections are obtained for the incident energies in the range of 10–500 eV. Comparisons of these different types of cross section results with the available measurements and other calculations show good agreement, which suggests the applicability of our present approach.https://www.mdpi.com/2218-2004/8/4/83electron–positron scatteringstatic potentialGaussian wavefunctioncomplex optical potentialcross sections |
| spellingShingle | Dibyendu Mahato Lalita Sharma Rajesh Srivastava Study of Electron and Positron Elastic Scattering from Hydrogen Sulphide Using Analytically Obtained Static Potential Atoms electron–positron scattering static potential Gaussian wavefunction complex optical potential cross sections |
| title | Study of Electron and Positron Elastic Scattering from Hydrogen Sulphide Using Analytically Obtained Static Potential |
| title_full | Study of Electron and Positron Elastic Scattering from Hydrogen Sulphide Using Analytically Obtained Static Potential |
| title_fullStr | Study of Electron and Positron Elastic Scattering from Hydrogen Sulphide Using Analytically Obtained Static Potential |
| title_full_unstemmed | Study of Electron and Positron Elastic Scattering from Hydrogen Sulphide Using Analytically Obtained Static Potential |
| title_short | Study of Electron and Positron Elastic Scattering from Hydrogen Sulphide Using Analytically Obtained Static Potential |
| title_sort | study of electron and positron elastic scattering from hydrogen sulphide using analytically obtained static potential |
| topic | electron–positron scattering static potential Gaussian wavefunction complex optical potential cross sections |
| url | https://www.mdpi.com/2218-2004/8/4/83 |
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