The 17F(p,γ)18Ne reaction at stellar energies

Details The 17F(p,γ)18Ne reaction at stellar energies The 17F(p,γ)18Ne reaction at stellar energies

Jan 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004nupha.730..316d&link_type=abstract

Nuclear Physics A, Volume 730, Issue 3-4, p. 316-328.

Physics

Nuclear Physics

8

Scientific paper

The 17F(p,γ)18Ne radiative capture reaction is investigated with a two-cluster generator-coordinate method. A multi-channel description of the 18Ne wave functions as a superposition of the 17F+p and 14O+α channels is used. The 17F and 14O wave functions are defined in the shell model involving s, p and sd orbitals. The model provides a good overall description of the 18Ne spectroscopy at energies typical of nova and x-ray burst processes. In particular, the 3+1 state, an s-wave resonance dominating the reaction rate at temperatures above 5×108 K, is well described. We find a proton width Γp=21.1 keV, in good agreement with the experimental value Γp=18.0+/-2stat+/-1sys keV. Its gamma width, unknown experimentally, is Γγ=33 meV, similar to values deduced from the shell model, and used in astrophysics (Γγ=30+/-20 meV). The non-resonant (E1) as well as the resonant contributions (M1,E2) of the astrophysical S-factor are determined. At zero energy we find S(0)=3.5 keV-b. The corresponding 17F(p,γ)18Ne reaction rate is calculated, and compared with previous approaches.
Directeur de Recherches FNRS.

Affiliated with

Also associated with

No associations

Rating

The 17F(p,γ)18Ne reaction at stellar energies 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 17F(p,γ)18Ne reaction at stellar energies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The 17F(p,γ)18Ne reaction at stellar energies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1552736