Physics – Nuclear Physics
Scientific paper
Apr 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004phrvl..92q2502c&link_type=abstract
Physical Review Letters, vol. 92, Issue 17, id. 172502
Physics
Nuclear Physics
20
Nuclear Physics Aspects Of Novae, Supernovae, And Other Explosive Environments, Radiative Capture, Transfer Reactions, 20<=A<=38
Scientific paper
A new experimental approach was developed that can reduce the uncertainties in astrophysical rapid proton capture (rp) process calculations due to nuclear data. This approach utilizes neutron removal from a radioactive ion beam to populate the nuclear states of interest. Excited states were deduced by the γ-decay spectra measured in a semiconductor Ge-detector array. In the first case studied, 33Ar, excited states were measured with uncertainties of several keV. The 2orders of magnitude improvement in the uncertainty of the level energies resulted in a 3orders of magnitude improvement in the uncertainty of the calculated 32Cl(p,γ)33Ar rate that is critical to the modeling of the rp process. This approach has the potential to measure key properties of almost all interesting nuclei on the rp-process path.
Bazin Daniel
Benenson W.
Brown Alex B.
Clement R. R.
Cole Arthur Lindsey
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