Measuring <sup>84</sup>Se(d,p) at 45 MeV/A to reduce uncertainties in spectroscopic factors of states in <sup>85</sup>Se
ORAL
Abstract
Neutron-transfer reactions with radioactive ion beams (RIBs) enable the structure of neutron-rich nuclei to be studied. With (d,p) reactions, spectroscopic factors can be extracted through a normalization of the observed angular distribution of reaction protons to that modelled using theory. They are, therefore, heavily dependent on the optical-model parameters chosen to model the bound state. A combined method using high and low energy RIBs allows for both a peripheral and more central probe of the nucleus, thereby constraining the appropriate bound state parameters and reducing uncertainties in the extracted spectroscopic factors. Having previously been demonstrated with the 86Kr(d,p) reaction, this method is now being used to determine spectroscopic factors of states in 85Se through 84Se(d,p). A measurement at 4.5 MeV/A has already been performed [1], providing the low-energy analysis. The high-energy measurement at 45 MeV/A was performed at the NSCL using ORRUBA and SIDAR to measure reaction protons in coincidence with the heavy ion recoil using the S800 spectrograph. Preliminary results will be presented.
[1] J.S. Thomas et al., Phys. Rev. C 76, 044302 (2007)
*This work is supported in part by the National Science Foundation and U.S. Department of Energy.
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Presenters
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Harrison E Sims
- Rutgers Univ
- Rutgers University