Proton capture on stored radioactive ¹¹⁸Te ions

  • Experimental determination of the cross sections of proton capture on radioactive nuclei is extremely difficult. Therefore, it is of substantial interest for the understanding of the production of the p-nuclei. For the first time, a direct measurement of proton-capture cross sections on stored, radioactive ions became possible in an energy range of interest for nuclear astrophysics. The experiment was performed at the Experimental Storage Ring (ESR) at GSI by making use of a sensitive method to measure (p,γ) and (p,n) reactions in inverse kinematics. These reaction channels are of high relevance for the nucleosyn-thesis processes in supernovae, which are among the most violent explosions in the universe and are not yet well understood. The cross section of the ¹¹⁸Te(p,γ) reaction has been measured at energies of 6 MeV/u and 7 MeV/u. The heavy ions interacted with a hydrogen gas jet target. The radiative recombination process of the fully stripped ¹¹⁸Te ions and electrons from the hydrogen target was used as a luminosity monitor. An overview of the experimental method and preliminary results from the ongoing analysis will be presented.

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Author:Sophia Florence Dellmann, J. Glorius, Yu A. Litvinov, R. Reifarth, Kafa Al-Khasawneh, M. Aliotta, L. Bott, Benjamin Brückner, C. G. Bruno, Ruijiu Chen, T. Davinson, T. Dickel, Iris Dillmann, D. Dmytriev, P. Erbacher, D. Freire-Fernández, Oliver Forstner, H. Geissel, K. Göbel, Christopher J. Griffin, R. Grisenti, Alexandre Gumberidze, Emma Haettner, Siegbert Hagmann, M. Heil, R. Heß, P.-M. Hillenbrand, R. Joseph, B. Jurado, Christophor Kozhuharov, I. Kulikov, Bastian Löher, Christoph Langer, Guy Leckenby, C. Lederer-Woods, M. Lestinsky, S. A. Litvinov, B. A. Lorenz, E. Lorenz, J. Marsh, Esther Babette Menz, T. Morgenroth, N. Petridis, Jerome Pibernat, U. Popp, Athanasios Psaltis, Shahab Sanjari, C. Scheidenberger, M. Sguazzin, Ragandeep Singh Sidhu, Uwe Spillmann, M. Steck, T. Stöhlker, A. Surzhykov, J. A. Swartz, H. Törnqvist, L. Varga, Diego Vescovi, H. Weick, M. Weigand, P. Woods, Y. Xing, Taiyo Yamaguchi
Parent Title (English):EPJ Web of Conferences
Publisher:EDP Sciences
Document Type:Article
Year of Completion:2023
Date of the Publication (Server):2023/09/11
Issue:Article Number: 11018
First Page:1
Last Page:5
Volume 279, 2023. Nuclear Physics in Astrophysics – X (NPA-X 2022).
Institutes:FH Aachen / Fachbereich Chemie und Biotechnologie
FH Aachen / Fachbereich Energietechnik
collections:Open Access
Verlag / EDP Sciences
Licence (German):License LogoCreative Commons - Namensnennung