First Measurement of the \(^{96}\)Ru(p,\(\gamma\))\(^{97}\)Rh Cross Section for the p-Process with a Storage Ring
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 Darms...
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| creator | Mei, Bo Aumann, Thomas Bishop, Shawn Blaum, Klaus Boretzky, Konstanze Bosch, Fritz Brandau, Carsten Bräuning, Harald Davinson, Thomas Dillmann, Iris Dimopoulou, Christina Ershova, Olga Fülöp, Zsolt Geissel, Hans Glorius, Jan Gyürky, György Heil, Michael Käppeler, Franz Kelic-Heil, Aleksandra Kozhuharov, Christophor Langer, Christoph Tudi Le Bleis Litvinov, Yuri Lotay, Gavin Marganiec, Justyna Münzenberg, Gottfried Nolden, Fritz Petridis, Nikolaos Plag, Ralf Popp, Ulrich Rastrepina, Ganna Reifarth, René Riese, Björn Rigollet, Catherine Scheidenberger, Christoph Haik, Simon Sonnabend, Kerstin Steck, Markus Stöhlke, Thomas Szücs, Tamás Sümmerer, Klaus Weber, Günter Weick, Helmut Winters, Danyal Winters, Natalya Woods, Philip Zhong, Qiping |
| description | 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. |
| doi_str_mv | 10.48550/arxiv.1507.04916 |
| format | Article |
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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.</abstract><cop>Ithaca</cop><pub>Cornell University Library, arXiv.org</pub><doi>10.48550/arxiv.1507.04916</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Density Nuclear cross sections Nuclei (nuclear physics) Physics - Instrumentation and Methods for Astrophysics Physics - Nuclear Experiment |
| title | First Measurement of the \(^{96}\)Ru(p,\(\gamma\))\(^{97}\)Rh Cross Section for the p-Process with a Storage Ring |
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