|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'504'928
Articles rated: 2609
25 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Positronium atom scattering by H_2 in a coupled-channel framework | | P. K. Biswas
; Sadhan K. Adhikari
; | | Date: |
17 Dec 2000 | | Journal: | J. Phys. B, 33 (2000) 1575-1584 | | Subject: | Atomic and Molecular Clusters; Chemical Physics | physics.atm-clus physics.chem-ph | | Abstract: | The scattering of ortho positronium (Ps) by H$_2$ has been investigated using a three-Ps-state [Ps(1s,2s,2p)H$_2($X $^1Sigma_g^+$)] coupled-channel model and using Born approximation for higher excitations and ionization of Ps and B $^1Sigma_u^+$ and b $^3Sigma_u^+$ excitations of H$_2$. We employ a recently proposed time-reversal-symmetric nonlocal electron-exchange model potential. We present a calculational scheme for solving the body-frame fixed-nuclei coupled-channel scattering equations for Ps-H$_2$, which simplifies the numerical solution technique considerably. Ps ionization is found to have the leading contribution to target-elastic and all target-inelastic processes. The total cross sections at low and medium energies are in good agreement with experiment. | | Source: | arXiv, physics/0012039 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER