dorsal/arxiv
View SchemaPositron annihilation in $e^+ -$H collision above the Positronium formation threshold
| Authors | S. L. Yakovlev, C-. Y. Hu |
|---|---|
| Categories | |
| ArXiv ID | physics/0510009 |
| URL | https://arxiv.org/abs/physics/0510009 |
Abstract
A long-standing problem to account for the electron-positron annihilation in positron Hydrogen scattering above the Positronium formation threshold has been resolved by the use of the three-body Faddeev formalism. The multichannel three-body theory for scattering states in presence of a complex absorbing potential is developed in order to compute the direct $e^+ e^-$ annihilation amplitude, the amplitude of Positronium formation and respective cross sections. A number of $e^+ e^-$ direct annihilation cross sections and Positronium formation cross sections in the energy gap between Ps$(1s)$ and H$(n=2)$ thresholds are reported for both the positron-Hydrogen incoming channel as well as the proton-Positronium incoming channel.
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"date_created": "2026-03-02T18:01:00.415000Z",
"date_modified": "2026-03-02T18:01:00.415000Z",
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"abstract": "A long-standing problem to account for the electron-positron annihilation in\npositron Hydrogen scattering above the Positronium formation threshold has been\nresolved by the use of the three-body Faddeev formalism. The multichannel\nthree-body theory for scattering states in presence of a complex absorbing\npotential is developed in order to compute the direct $e^+ e^-$ annihilation\namplitude, the amplitude of Positronium formation and respective cross\nsections. A number of $e^+ e^-$ direct annihilation cross sections and\nPositronium formation cross sections in the energy gap between Ps$(1s)$ and\nH$(n=2)$ thresholds are reported for both the positron-Hydrogen incoming\nchannel as well as the proton-Positronium incoming channel.",
"arxiv_id": "physics/0510009",
"authors": [
"S. L. Yakovlev",
"C-. Y. Hu"
],
"categories": [
"physics.atom-ph"
],
"title": "Positron annihilation in $e^+ -$H collision above the Positronium formation threshold",
"url": "https://arxiv.org/abs/physics/0510009"
},
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