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http://hdl.handle.net/2248/2822
Title: | Compton Scattering, Pair Annihilation, and Pair Production in a Plasma |
Authors: | Krishan, V |
Keywords: | Electron Photon Coupling Astrophysical Sources Compton Scattering |
Issue Date: | 2000 |
Publisher: | International Astronomical Union |
Citation: | IAU Symposia, Vol. 195, pp. 359 - 366 |
Abstract: | The square of the four-momentum of a photon in vacuum is zero. However, in an unmagnetized plasma, it is equal to the square of the plasma frequency. Further, the electron-photon coupling vertex is modified in a plasma to include the effect of the plasma medium. I calculate the cross sections of three processes in a plasma---Compton scattering and electron-positron pair annihilation and production. At high plasma densities, the cross sections are found to change significantly. Such high plasma densities exist in several astrophysical sources |
URI: | http://hdl.handle.net/2248/2822 |
ISSN: | 0074-1809 |
Appears in Collections: | IIAP Publications |
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Krishan V.pdf | 512.02 kB | Adobe PDF | View/Open |
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