Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-07-24
Phys.Rev.D76:025028,2007
Astronomy and Astrophysics
Astrophysics
13 pages, 7 figures, to appear in Phys. Rev. D
Scientific paper
10.1103/PhysRevD.76.025028
We compare Path Integral Monte Carlo calculations by Militzer and Pollock (Phys. Rev. B 71, 134303, 2005) of Coulomb tunneling in nuclear reactions in dense matter to semiclassical calculations assuming WKB Coulomb barrier penetration through the radial mean-field potential. We find a very good agreement of two approaches at temperatures higher than ~1/5 of the ion plasma temperature. We obtain a simple parameterization of the mean field potential and of the respective reaction rates. We analyze Gamow-peak energies of reacting ions in various reaction regimes and discuss theoretical uncertainties of nuclear reaction rates taking carbon burning in dense stellar matter as an example.
Chugunov A. I.
DeWitt Hugh E.
Yakovlev Dmitry G.
No associations
LandOfFree
Coulomb tunneling for fusion reactions in dense matter: Path integral Monte Carlo versus mean field 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 Coulomb tunneling for fusion reactions in dense matter: Path integral Monte Carlo versus mean field, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coulomb tunneling for fusion reactions in dense matter: Path integral Monte Carlo versus mean field will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-440091