Recent Direct Reaction Experimental Studies with Radioactive Tin Beams

Journal Article · Sun Mar 01 00:00:00 EST 2015 · Acta Physica Polonica. Series B

DOI:https://doi.org/10.5506/APhysPolB.46.537· OSTI ID:1438757

Jones, K. L. ^[1]; Ahn, S. ^[2]; Allmond, J. M. ^[3]; Ayres, A. ^[1]; Bardayan, D. W. ^[4]; Baugher, T. ^[5]; Bazin, D. ^[6]; Berryman, J. S. ^[6]; Bey, A. ^[1]; Bingham, C. ^[7]; Cartegni, L. ^[1]; Cerizza, G. ^[1]; Chae, K. Y. ^[8]; Cizewski, J. A. ^[9]; Gade, A. ^[6]; Galindo-Uribarri, A. ^[3]; Garcia-Ruiz, R. F. ^[10]; Grzywacz, R. ^[7]; Howard, M. E. ^[9]; Kozub, R. L. ^[11] ; Liang, J. F. ^[3]; Manning, B. ^[9]; Mato?, M. ^[12]; McDaniel, S. ^[6]; Miller, D. ^[13]; Nesaraja, C. D. ^[14]; O'Malley, P. D. ^[15]; Padgett, S. ^[16]; Padilla-Rodal, E. ^[17]; Pain, S. D. ^[14]; Pittman, S. T. ^[18]; Radford, D. C. ^[14]; Ratkiewicz, A. ^[19]; Schmitt, K. T. ^[14]; Shore, A. ^[20]; Smith, M. S. ^[14]; Stracener, D. W. ^[14]; Stroberg, S. R. ^[20]; Tostevin, J. ^[21]; Varner, R. L. ^[14]; Weisshaar, D. ^[20]; Wimmer, K. ^[22]; Winkler, R. ^[20]

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1. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy
2. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy; Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy
3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division
4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division; Univ. of Notre Dame, IN (United States). Dept. of Physics
5. Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy; Rutgers Univ., New Brunswick, NJ (United States). Dept. of Physics and Astronomy
6. Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy
7. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division
8. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division; Sungkyunkwan University, Suwon (Korea). Dept. of Physics
9. Rutgers Univ., New Brunswick, NJ (United States). Dept. of Physics and Astronomy
10. Instituut voor Kernen Stralingsfysica, KU Leuven (Belgium)
11. Tennessee Technological Univ., Cookeville, TN (United States). Dept. of Physics
12. Louisiana State Univ., Baton Rouge, LA (United States). Dept. of Physics and Astronomy; International Atomic Energy Agency, Division of Physical and Chemical Sciences, Vienna (Austria)
13. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy; TRIUMF, Vancouver, BC (Canada)
14. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
15. Rutgers Univ., New Brunswick, NJ (United States); Univ. of Notre Dame, IN (United States)
16. Univ. of Tennessee, Knoxville, TN (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
17. Univ. Nacional Autonoma de Mexico (UNAM), Mexico City (Mexico). Inst. de Ciencias Nucleares
18. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Louisiana State Univ., Baton Rouge, LA (United States)
19. Michigan State Univ., East Lansing, MI (United States); Rutgers Univ., New Brunswick, NJ (United States)
20. Michigan State Univ., East Lansing, MI (United States)
21. Univ. of Surrey, Guildford (United Kingdom)
22. Michigan State Univ., East Lansing, MI (United States); Central Michigan Univ., Mount Pleasant, MI (United States)

Direct reaction techniques are powerful tools to study the single-particle nature of nuclei. Performing direct reactions on short-lived nuclei requires radioactive ion beams produced either via fragmentation or the Isotope Separation OnLine (ISOL) method. Some of the most interesting regions to study with direct reactions are close to the magic numbers where changes in shell structure can be tracked. These changes can impact the final abundances of explosive nucleosynthesis. The structure of the chain of tin isotopes is strongly influenced by the Z = 50 proton shell closure, as well as the neutron shell closures lying in the neutron-rich, N = 82, and neutron-deficient, N = 50, regions. Here, we present two examples of direct reactions on exotic tin isotopes. The first uses a one-neutron transfer reaction and a low-energy reaccelerated ISOL beam to study states in Sn-131 from across the N = 82 shell closure. The second example utilizes a one-neutron knockout reaction on fragmentation beams of neutron-deficient Sn-^106,108Sn. In conclusion, In both cases, measurements of γ rays in coincidence with charged particles proved to be invaluable.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Holifield Radioactive Ion Beam Facility (HRIBF)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• Grant/Contract Number: AC52-07NA27344; FG02-96ER40983; SC0001174; FG02-96ER40955; AC05-00OR22725; FG02-96ER40978; FG52-08NA28552; NA0002132; FG52- 08NA28552; PHY-1067806; PHY-1102511; PHY- 0722822; ST/J000051/1
• OSTI ID: 1438757
• Alternate ID(s): OSTI ID: 1261430
• Report Number(s): LLNL-JRNL-736511
• Journal Information: Acta Physica Polonica. Series B, Vol. 46, Issue 3; ISSN 0587-4254
• Publisher: Jagiellonian University
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS