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Title: Towards Neutron Capture on Exotic Nuclei: Demonstrating ( d , p γ ) as a Surrogate Reaction for ( n , γ )

Journal Article · · Physical Review Letters
 [1];  [2];  [3];  [4];  [3];  [3];  [5];  [6];  [2];  [7];  [2];  [8];  [9];  [2];  [10];  [3];  [11];  [12]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Rutgers Univ., New Brunswick, NJ (United States). Dept. of Physics and Astronomy
  2. Rutgers Univ., New Brunswick, NJ (United States). Dept. of Physics and Astronomy
  3. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  4. Michigan State Univ., East Lansing, MI (United States); Facility for Rare Isotope Beams, East Lansing, MI (United States)
  5. Texas A & M Univ., College Station, TX (United States). Cyclotron Inst.
  6. Saint Mary’s Univ., Halifax, NS (Canada). Astronomy and Physics Dept.
  7. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of Richmond, VA (United States). Dept. of Physics
  8. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division
  9. Oak Ridge Associated Univ., Oak Ridge, TN (United States)
  10. Univ. of Richmond, VA (United States). Dept. of Physics
  11. Rutgers Univ., New Brunswick, NJ (United States). Dept. of Physics and Astronomy; Univ. of Surrey, Guildford (United Kingdom). Dept. of Physics
  12. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

The neutron-capture reaction plays a critical role in the synthesis of the elements in stars and is important for societal applications including nuclear power generation and stockpile-stewardship science. However, it is difficult—if not impossible—to directly measure neutron capture cross sections for the exotic, short-lived nuclei that participate in these processes. In this Letter we demonstrate a new technique which can be used to indirectly determine neutron-capture cross sections for exotic systems. This technique makes use of the (d,p) transfer reaction, which has long been used as a tool to study the structure of nuclei. Recent advances in reaction theory, together with data collected using this reaction, enable the determination of neutron-capture cross sections for short-lived nuclei. A benchmark study of the Mo95(d,p) reaction is presented, which illustrates the approach and provides guidance for future applications of the method with short-lived isotopes produced at rare isotope accelerators.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Texas A & M Univ., College Station, TX (United States); Michigan State Univ., East Lansing, MI (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation; USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
AC52-07NA27344; FG52-09NA29467; NA0000979; FG02-93ER40773; SC0013617
OSTI ID:
1512636
Alternate ID(s):
OSTI ID: 1493860; OSTI ID: 1606506
Report Number(s):
LLNL-JRNL-751443; 937205
Journal Information:
Physical Review Letters, Vol. 122, Issue 5; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 30 works
Citation information provided by
Web of Science

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Cited By (2)

Direct neutron capture cross section on Ge 80 and probing shape coexistence in neutron-rich nuclei journal October 2019
The neutron within the deuteron as a surrogate for neutron-induced reactions journal December 2019