Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
1997-07-31
Physics
Nuclear Physics
Nuclear Experiment
2 figures, Shortened manuscript to comply with PRC length requirements
Scientific paper
We dispute the alteration by Azuma et al. of the energy calibration of the Mainz('71) data on the beta-delayed alpha-particle emission of $^{16}N$ as well as the very justification of the recalibration. We use the unaltered data to observe a pronounced disagreement between the TRIUMF('94) and Mainz('71) data sets on both the high and low energy sides of the primary peak (at 2.36 MeV) of the $^{16}N$ alpha-spectrum. We cannot support the dismissal of the Mainz('71) spectrum by the TRIUMF collaboration and emphasize the need to include it in R-matrix fits. We discuss the need for new improved data to resolve this disagreement and its implication for the extracted p-wave astrophysical S-factor of the $^{12}C(\alpha,\gamma)^{16}O$ reaction.
France III Ralph H.
Gai Moshe
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