Semiclassical Treatment of Induced Schwinger Processes at Finite Temperature

Details Semiclassical Treatment of Induced Schwinger Processes at Finite Temperature Semiclassical Treatment of Induced Schwinger Processes at Finite Temperature

2008-03-07

arxiv.org/abs/0803.1022v2

JETP Lett.87:709-714,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 1 fugure

Scientific paper

10.1134/S0021364008110040

We consider induced pair production in an external field at finite temperature. One-loop correction to the Green function of a meson is calculated semiclassically within the framework of saddle-point analysis of Schwinger proper time integrals. This correction appears to be exponentially small in terms of inverse temperature dependence. Low-temperature limit is shown to be in full agreement with previously obtained zero-temperature results. The corrections in the low-temperature limits are estimated up to the leading exponential and pre-exponential terms. Comparison is made to earlier calculations of vacuum decay.

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