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Title: 24Mg(p, α) 21Na reaction study for spectroscopy of 21Na

The Mg-24(p, alpha)Na-21 reaction was measured at the Holifield Radioactive Ion Beam Facility at Oak Ridge National Laboratory in order to better constrain the spins and parities of the energy levels in Na-21 for the astrophysically important F-17(alpha, p)Ne-20 reaction rate calculation. 31-MeV proton beams from the 25-MV tandem accelerator and enriched Mg-24 solid targets were used. When recoiling He-4 particles from the Mg-24(p, alpha)Na-21 reaction we used a highly segmented silicon detector array to detect them; it measured the yields of He-4 particles over a range of angles simultaneously. A observed a new level at 6661 ± 5 keV in the present work. The extracted angular distributions for the first four levels of Na-21 and the results from distorted wave Born approximation (DWBA) calculations were compared to verify and extract the angular momentum transfer.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [5] ;  [5] ;  [5] ;  [5] ;  [5] ;  [6] ;  [7] ;  [8] ;  [8] ;  [8] ;  [9]
  1. Sungkyunkwan Univ., Suwon (Republic of Korea). Dept. of Physics
  2. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy
  3. Univ. of Notre Dame, IN (United States). Dept. of Physics
  4. Colorado School of Mines, Golden, CO (United States). Dept. of Physics
  5. Rutgers Univ., New Brunswick, NJ (United States). Dept. of Physics and Astronomy
  6. Tennessee Technological Univ., Cookeville, TN (United States). Dept. of Physics
  7. Louisiana State Univ., Baton Rouge, LA (United States). Dept. of Physics and Astronomy
  8. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division
  9. Oak Ridge Associated Univ., Oak Ridge, TN (United States)
Publication Date:
Grant/Contract Number:
AC05-00OR22725; FG52-08NA28552; FG02-96ER4055; FG02-96ER40983
Type:
Accepted Manuscript
Journal Name:
Journal of the Korean Physical Society
Additional Journal Information:
Journal Volume: 67; Journal Issue: 8; Journal ID: ISSN 0374-4884
Publisher:
Korean Physical Society
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Holifield Radioactive Ion Beam Facility (HRIBF)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; nuclear structure; transfer reaction; excitation energies; angular distribution; spectroscopic study; DWBA calculation
OSTI Identifier:
1342662