Other
Scientific paper
May 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aps..may..b711s&link_type=abstract
American Physical Society, APS/AAPT Joint Meeting, May 2-5, 1996, abstract #B7.11
Other
Scientific paper
Trident production, e^-→ e^-+e^-+e^+, is a second order QED process which is energetically forbidden in vacuum but allowed in the strong magnetic fields for the case in which the initial electron is in a sufficiently high Landau level. We compare the decay rate of this process with the rate of two separate first order processes, cyclotron emission and pair production, in strong but uniform magnetic fields. The trident process, which is mediated by a virtual intermediate photon, in fact would be identical to the latter two if the intermediate photon happens to be real. In general, however, the photon can be off-shell and the trident rate exceeds the ``convolved'' rate of the other two. The pair production mechanism has a crucial role in the standard models of pulsars and some models of gamma ray bursts in which neutron stars are invoked. Our aim here is thus to investigate the correction due to the virtual nature of the pair producing photon.
Graziani Carlo
Harding Alice K.
Sina Ramin
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