Direct reaction measurements with a 132Sn radioactive ion beam
| Autor: | Kelly Chipps, D. W. Bardayan, Thomas P. Swan, Caroline D Nesaraja, Jeff Blackmon, J. F. Shriner, R. L. Kozub, Michael Scott Smith, L. Erikson, Robert Hatarik, N. Patterson, Filomena Nunes, Brian Moazen, Aderemi S. Adekola, J. S. Thomas, K. L. Jones, K. Y. Chae, J. F. Liang, R. Kapler, R. J. Livesay, Steven Pain, C. Harlin, Dan Shapira, Jolie Cizewski, Zhongguo J. Ma |
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| Rok vydání: | 2011 |
| Předmět: |
Physics
Elastic scattering Nuclear and High Energy Physics Ion beam 010308 nuclear & particles physics Shell (structure) FOS: Physical sciences 01 natural sciences 3. Good health Cross section (physics) symbols.namesake 0103 physical sciences symbols Neutron Rutherford scattering Atomic physics Born approximation Nuclear Experiment (nucl-ex) 010306 general physics Spin (physics) Nuclear Experiment |
| DOI: | 10.48550/arxiv.1105.4755 |
| Popis: | The (d,p) neutron transfer and (d,d) elastic scattering reactions were measured in inverse kinematics using a radioactive ion beam of 132Sn at 630 MeV. The elastic scattering data were taken in a region where Rutherford scattering dominated the reaction, and nuclear effects account for less than 8% of the cross section. The magnitude of the nuclear effects was found to be independent of the optical potential used, allowing the transfer data to be normalized in a reliable manner. The neutron-transfer reaction populated a previously unmeasured state at 1363 keV, which is most likely the single-particle 3p1/2 state expected above the N=82 shell closure. The data were analyzed using finite range adiabatic wave calculations and the results compared with the previous analysis using the distorted wave Born approximation. Angular distributions for the ground and first excited states are consistent with the previous tentative spin and parity assignments. Spectroscopic factors extracted from the differential cross sections are similar to those found for the one neutron states beyond the benchmark doubly-magic nucleus 208Pb. Comment: 22 pages, 7 figures |
| Databáze: | OpenAIRE |
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