Neutron capture of 26Mg at thermonuclear energies

Abstract

The neutron capture cross section of 26Mg 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 Van-de-Graaff 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 et al. An improved Maxwellian averaged capture cross section is derived from the new experimental data taking into account s- and p-wave capture and resonant contributions. The properties of so-called potential resonances which influence the p-wave neutron capture of 26}Mg are discussed in detail.

arXiv comment15 pages (uses Revtex), 7 postscript figures (uses psfig.sty), accepted for publication in Phys. Rev. C

References in corpus (3)

• Direct radiative capture of p-wave neutrons
• Alpha scattering and capture reactions in the A = 7 system at low energies
• Measurement of neutron capture on ${}^{48}$Ca at thermal and thermonuclear energies

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