Statistics – Computation
Scientific paper
Nov 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...363..574g&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 363, Nov. 10, 1990, p. 574-577.
Statistics
Computation
8
Nuclear Astrophysics, Polarization Characteristics, Stellar Physics, Thermonuclear Reactions, Computational Astrophysics, Coulomb Collisions, Wentzel-Kramer-Brillouin Method
Scientific paper
Added to the pure Coulomb potential, the contribution from vacuum polarization increases the barrier, reducing the wave function (u) for reacting nuclei within the range of nuclear forces. The cross section and reaction rate are then reduced accordingly by a factor proportional to u squared. The effect is treated by evaluating the vacuum polarization potential as a small correction to the Coulomb term, then computing u in a WKB formulation. The calculation is done analytically employing the small r power-series expansion for the Uehling potential to express the final result in terms of convenient parameters. At a temperature of 1.4 x 10 to the 7th K the (negative) correction is 1.3 percent for the fundamental fusion process p + p yields d + e(+) + nu.
No associations
LandOfFree
The effects of vacuum polarization on thermonuclear reaction rates does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The effects of vacuum polarization on thermonuclear reaction rates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The effects of vacuum polarization on thermonuclear reaction rates will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-839794