Abstract
The Mg24(p,α)Na21 reaction was measured at the Holifield Radioactive Ion Beam Facility of the Oak Ridge National Laboratory to study the spectroscopy of the radionuclide Na21. A 31-MeV proton beam from the 25 MV tandem accelerator bombarded isotopically enriched Mg24 targets. Recoiling He4 particles were identified by an annular silicon strip detector array. Two energy levels at Ex=6.594 and 7.132 MeV were observed for the first time. By comparing the experimentally obtained angular distributions and distorted wave Born approximation calculations, the spins and parities of Na21 energy levels were constrained. The astrophysically-important F17(α,p)Ne20 reaction rate was also calculated for the first time using resonance parameters for 12 energy levels.
| Original language | English |
|---|---|
| Article number | 025810 |
| Journal | Physical Review C |
| Volume | 96 |
| Issue number | 2 |
| DOIs | |
| State | Published - Aug 31 2017 |
Funding
This work was supported by National Research Foundation of Korea (NRF) grants funded by the Korea government Ministry of Education, Science, and Technology (MEST) Nos. NRF-2014S1A2A2028636, NRF-2015R1D1A1A01056918, NRF-2016K1A3A7A09005579, and NRF-2016R1A5A1013277. This research was supported in part by the National Nuclear Security Administration under the Stewardship Science Academic Alliances program through U.S. DOE Cooperative Agreement No. DE-FG52-08NA28552 with Rutgers University and Oak Ridge Associated Universities. This work was also supported in part by the Office of Nuclear Physics, Office of Science of the U.S. DOE under Contracts No. DE-FG02-96ER40955 with Tennessee Technological University, No. DE-FG02-96ER40983 with the University of Tennessee, and No. DE-AC-05-00OR22725 at Oak Ridge National Laboratory, and the National Science Foundation.