Neutron capture of ^{26}Mg at thermonuclear energies
Abstract
The neutron capture cross section of ^{26}Mg was measured relative to the known gold cross section at thermonuclear energies using the fast cyclic activation technique. The experiment was performed at the 3.75 MV VandeGraaff accelerator, Forschungszentrum Karlsruhe. The experimental capture cross section is the sum of resonant and direct contributions. For the resonance at E_{n,lab}=220 keV our new results are in disagreement with the data from Weigmann, Macklin, and Harvey [Phys. Rev. C 14, 1328 (1976)]. An improved Maxwellian averaged capture cross section is derived from the new experimental data taking into account s and pwave capture and resonant contributions. The properties of socalled potential resonances which influence the pwave neutron capture of ^{26}Mg are discussed in detail.
 Publication:

Physical Review C
 Pub Date:
 August 1998
 DOI:
 10.1103/PhysRevC.58.932
 arXiv:
 arXiv:nuclex/9805008
 Bibcode:
 1998PhRvC..58..932M
 Keywords:

 25.40.Lw;
 24.50.+g;
 27.30.+t;
 Radiative capture;
 Direct reactions;
 20<
 =A<
 =38;
 Nuclear Experiment;
 Astrophysics;
 Nuclear Theory
 EPrint:
 15 pages (uses Revtex), 7 postscript figures (uses psfig.sty), accepted for publication in Phys. Rev. C