Misassigned neutron resonances of 142Nd and stellar neutron capture cross sections
Abstract
Time-of-flight spectra of the neutron capture events of 142Nd were measured using a spallation neutron source at the Japan Proton Accelerator Research Complex. The first six resonances of 142Nd reported in a previous work were not observed. The experimental results and cross-search of resonance energies in nuclear data libraries suggested that resonances of the impurity nuclide 141Pr have been mistakenly assigned as 142Nd in the previous experiment. To investigate the impact of the nonexistence of the resonances on the s -process nucleosynthesis model, the Maxwellian averaged neutron capture cross sections with and without the misassigned resonances were compared.
- Publication:
-
Physical Review C
- Pub Date:
- March 2015
- DOI:
- 10.1103/PhysRevC.91.037603
- Bibcode:
- 2015PhRvC..91c7603K
- Keywords:
-
- 25.40.Ny;
- 25.40.Lw;
- 28.20.Np;
- 26.20.Kn;
- Resonance reactions;
- Radiative capture;
- Neutron capture gamma-rays;
- s-process