dorsal/arxiv
View SchemaThreshold detachment of negative ions by electron impact
| Authors | Jan M. Rost |
|---|---|
| Categories | |
| ArXiv ID | physics/9810044 |
| URL | https://arxiv.org/abs/physics/9810044 |
| DOI | 10.1103/PhysRevLett.82.1652 |
| Journal | Phys. Rev. Lett. 82, 1652 (1999) |
Abstract
The description of threshold fragmentation under long range repulsive forces is presented. The dominant energy dependence near threshold is isolated by decomposing the cross section into a product of a back ground part and a barrier penetration probability resulting from the repulsive Coulomb interaction. This tunneling probability contains the dominant energy variation and it can be calculated analytically based on the same principles as Wannier's description for threshold ionization under attractive forces. Good agreement is found with the available experimental cross sections on detachment by electron impact from $D^{-}$, $O^{-}$ and $B^{-}$.
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"abstract": "The description of threshold fragmentation under long range repulsive forces\nis presented. The dominant energy dependence near threshold is isolated by\ndecomposing the cross section into a product of a back ground part and a\nbarrier penetration probability resulting from the repulsive Coulomb\ninteraction. This tunneling probability contains the dominant energy variation\nand it can be calculated analytically based on the same principles as Wannier\u0027s\ndescription for threshold ionization under attractive forces. Good agreement is\nfound with the available experimental cross sections on detachment by electron\nimpact from $D^{-}$, $O^{-}$ and $B^{-}$.",
"arxiv_id": "physics/9810044",
"authors": [
"Jan M. Rost"
],
"categories": [
"physics.atom-ph"
],
"doi": "10.1103/PhysRevLett.82.1652",
"journal_ref": "Phys. Rev. Lett. 82, 1652 (1999)",
"title": "Threshold detachment of negative ions by electron impact",
"url": "https://arxiv.org/abs/physics/9810044"
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