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First Measurement of the $^{96}$Ru(p,$γ$)$^{97}$Rh Cross Section for the p-Process with a Storage Ring

Mei, B, Aumann, T, Bishop, S, Blaum, K, Boretzky, K, Bosch, F, Brandau, C, Bräuning, H, Davinson, T, Dillmann, I , Dimopoulou, C, Ershova, O, Fülöp, Z, Geissel, H, Glorius, J, Gyürky, G, Heil, M, Käppeler, F, Kelic-Heil, A, Kozhuharov, C, Langer, C, Bleis, TL, Litvinov, Y, Lotay, G, Marganiec, J, Münzenberg, G, Nolden, F, Petridis, N, Plag, R, Popp, U, Rastrepina, G, Reifarth, R, Riese, B, Rigollet, C, Scheidenberger, C, Simon, H, Sonnabend, K, Steck, M, Stöhlke, T, Szücs, T, Sümmerer, K, Weber, G, Weick, H, Winters, D, Winters, N, Woods, P and Zhong, Q (2015) First Measurement of the $^{96}$Ru(p,$γ$)$^{97}$Rh Cross Section for the p-Process with a Storage Ring Phys. Rev. C, 92.

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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.

Item Type: Article
Divisions : Surrey research (other units)
Authors :
Mei, B
Aumann, T
Bishop, S
Blaum, K
Boretzky, K
Bosch, F
Brandau, C
Bräuning, H
Davinson, T
Dillmann, I
Dimopoulou, C
Ershova, O
Fülöp, Z
Geissel, H
Glorius, J
Gyürky, G
Heil, M
Käppeler, F
Kelic-Heil, A
Kozhuharov, C
Langer, C
Bleis, TL
Litvinov, Y
Marganiec, J
Münzenberg, G
Nolden, F
Petridis, N
Plag, R
Popp, U
Rastrepina, G
Reifarth, R
Riese, B
Rigollet, C
Scheidenberger, C
Simon, H
Sonnabend, K
Steck, M
Stöhlke, T
Szücs, T
Sümmerer, K
Weber, G
Weick, H
Winters, D
Winters, N
Woods, P
Zhong, Q
Date : 10 July 2015
DOI : 10.1103/PhysRevC.92.035803
Uncontrolled Keywords : nucl-ex, nucl-ex, astro-ph.IM
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 13:40
Last Modified : 25 Jan 2020 00:16

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