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http://hdl.handle.net/11375/8553
Title: | One and Two Photon Annihilation Processes in a Strong Magnetic Field |
Authors: | Carr, Alexander Simon |
Advisor: | Sutherland, P. G. |
Department: | Physics |
Keywords: | Physics;Physics |
Publication Date: | Dec-1977 |
Abstract: | <p>We present theoretical calculations of the annihilation rates for one and two photon decay of ground state positronium in a strong magnetic field, of order (10¹²-10¹³) Gauss such as assumed for neutron star surfaces. The calculation indicate that the one photon process at field of 10¹³ Gauss is of order (10ˉ⁴) compared to the two photon process. Consequently, a one photon annihilation line at 1.022 MeV is not expected in the spectra of neutron stars. The two photon rate is of order (5x10¹³ secˉ¹) at 10¹³ G; the half width is 43 keV. Thus, at such fields, the two photon line is fairly narrow and not smeared out through the magnetic field effects.</p> |
URI: | http://hdl.handle.net/11375/8553 |
Identifier: | opendissertations/375 1239 887943 |
Appears in Collections: | Open Access Dissertations and Theses |
Files in This Item:
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fulltext.pdf | 1.97 MB | Adobe PDF | View/Open |
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