Nuclear Reaction Rates in a Plasma: The Effect of Highly Damped Modes
Opher, Merav · Opher, Reuven
Original · EN
The fluctuation-dissipation theorem is used to evaluate the screening factor of nuclear reactions due to the electromagnetic fluctuations in a plasma. We show that the commonly used Saltpeter factor is obtained if only fluctuations near the plasma eigenfrequency are assumed to be important (ω ωpe≪ T (ℏ=kB=1)). By taking into account all the fluctuations, the highly damped ones, with ω>ωpe, as well as those with ω≤ωpe, we find that nuclear reaction rates are higher than those obtained using the Saltpeter factor, for many interesting plasmas.
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