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First Measurement of the $^{96}$Ru(p,$\gamma$)$^{97}$Rh Cross Section for the p-Process with a Storage Ring
- Source :
- Phys. Rev. C 92, 035803 (2015)
- Publication Year :
- 2015
-
Abstract
- This work presents a direct measurement of the $^{96}$Ru($p, \gamma$)$^{97}$Rh cross section via a novel technique using a storage ring, which opens opportunities for reaction measurements on unstable nuclei. A proof-of-principle experiment was performed at the storage ring ESR at GSI in Darmstadt, where circulating $^{96}$Ru ions interacted repeatedly with a hydrogen target. The $^{96}$Ru($p, \gamma$)$^{97}$Rh cross section between 9 and 11 MeV has been determined using two independent normalization methods. As key ingredients in Hauser-Feshbach calculations, the $\gamma$-ray strength function as well as the level density model can be pinned down with the measured ($p, \gamma$) cross section. Furthermore, the proton optical potential can be optimized after the uncertainties from the $\gamma$-ray strength function and the level density have been removed. As a result, a constrained $^{96}$Ru($p, \gamma$)$^{97}$Rh reaction rate over a wide temperature range is recommended for $p$-process network calculations.<br />Comment: 10 pages, 7 figs, Accepted for publication at PRC
- Subjects :
- Nuclear Experiment
Astrophysics - Instrumentation and Methods for Astrophysics
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. C 92, 035803 (2015)
- Publication Type :
- Report
- Accession number :
- edsarx.1507.04916
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevC.92.035803