S-matrix calculation of the triple-alpha reaction

Details S-matrix calculation of the triple-alpha reaction S-matrix calculation of the triple-alpha reaction

Jun 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...317..368f&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 317, June 1, 1987, p. 368-388.

Physics

Atomic Physics

41

Abundance, Gamma Ray Bursts, Nuclear Fusion, Nuclear Reactions, S Matrix Theory, Supernovae, Alpha Particles, Astrophysics, Atomic Physics, High Temperature, Reaction Kinetics, Stellar Evolution

Scientific paper

An S-matrix formalism is developed which can be applied to reactions in which electron screening is important, including three-body reactions and reactions involving weak interactions. The various regimes of the triple-alpha reactions are systematically discussed, and a new nonresonant regime at high densities is identified. Using the S-matrix formalism, an analytic expression is obtained for the screened triple-alpha reactions which is accurate for all temperatures and densities. The results are compared with those of Cameron (1959) and Nomoto et al. (1985), and the latter's expression for the unscreened reaction rate is verified. However, it is shown that the reaction rate in the pycnonuclear regime cannot be obtained from the unscreened rate using a screening factor, and that the results of Nomoto et al. therefore cannot be used in this regime.

Affiliated with

Also associated with

No associations

Rating

S-matrix calculation of the triple-alpha reaction 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 S-matrix calculation of the triple-alpha reaction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and S-matrix calculation of the triple-alpha reaction will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1813946