2000/06/22 by M. Opher, Merav Opher, Opher, Merav +3
Physics and Astronomy · #Astrophysics (astro-ph) #FOS: Physical sciences #Magnetic confinement fusion research #Plasma Physics (physics.plasm-ph) #Quantum, superfluid, helium dynamics #Spectroscopy and Quantum Chemical Studies #astro-ph #physics.plasm-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/0006326
10 pages, 4 figures
arxiv created 2000/06/22 · openalex publication_date 2000/06/22 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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.