Gamma-ray spectroscopy of 131Sn81 via the (9Be, 8Be γ) reaction
Abstract
Nuclear data in the region of the doubly-magic nucleus 132Sn82 is useful for benchmarking nuclear structure theories due to the clean single-particle nature of the nuclear wavefunction near the closed shells. At the Holifield Radioactive Ion Beam Facility (HRIBF) neutron-rich beams in the 132Sn82 region were produced via proton-induced fission of a Uranium-Carbide target. The CLARION array of HPGe detectors was coupled with the HyBall array of CsI detectors to allow for particle-gamma coincidence measurements. The gamma-ray de-excitation of the four lowest lying single-neutron states has been observed for the first time via the (9Be,8Be γ) reaction. The excitation energy of these states have been measured to higher precision than was possible with the previous charged particle measurement.
This work was supported in part by the U.S. Department of Energy and the National Science Foundation.- Publication:
-
APS Division of Nuclear Physics Meeting Abstracts
- Pub Date:
- September 2016
- Bibcode:
- 2016APS..DNP.KE001B