$\alpha$-cluster structure in $^{19}$F and $^{19}$Ne in resonant scattering
| Pub type: | Article |
| Citation: | PhysRevC.105.014615 |
| Status: | Published |
| Journal: | Phys. Rev. C |
| Volume: | 105 |
| Number: | 1 |
| Year: | 2022 |
| Month: | Jan |
| Pages: | 014615 |
| Publisher: | American Physical Society |
| URL: | https://link.aps.org/doi/10.11... |
| DOI: | 10.1103/physrevc.105.014615 |
| Abstract: | The nuclear structure of 19F and 19Ne is important for understanding of alpha clustering in the A = 20 mass region and in questions related to astrophysics. However, the only high-resolution broad angular and energy range study of the 19F resonance structure in alpha +15N scattering was published over 60 years ago, and a detailed analysis of complex excitation functions of overlapping resonances with several decay channels was simply impossible at that time. We performed a modern R-matrix analysis of these old data to assign spins and specify resonant parameters of levels up to excitation energy of 8.2 MeV in 19F. We successfully tested our R-matrix parameters in a fit of the recent data on alpha +15N obtained by thick target inverse kinematics (TTIK) method at 180 degrees. We used the new parameters for 19F to fit TTIK data for alpha+15O, the mirror resonant reactions. The comparison of the data for isobaric mirror resonant reactions provides an interesting insight into the nuclear structure. |
| Month_val: | 1 |
| Sig contrib: | V. Goldberg, G. Rogachev |
| Keywords: | ELASTIC-SCATTERING |
| Authors: | |
| Added by: | [DGM] |
| Total mark: | 0 |
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