Proton capture on stored radioactive 118Te ions

S.F. Dellmann*, J. Glorius, Y. A. Litvinov, R. Reifarth, K. Al-Khasawneh, M. Aliotta, L. Bott, B. Bruckner, C. Bruno, R. J. Chen, T. Davinson, T. Dickel, I. Dillmann, D. Dmytriev, P. Erbacher, D. Freire-Fernandez, O. Forstner, H. Geissel, K. Gobel, C.J. GriffinR. Grisenti, A. Gumberidze, E. Haettner, S. Hagmann, M. Heil, R. Hes, P.-M. Hillenbrand, R. Joseph, B. Jurado, C. Kozhuharov, I. Kulikov, B. Loher, C. Langer, G. Leckenby, C. Lederer-Woods, M. Lestinsky, S. Litvinov, B.A. Lorenz, E. Lorenz, J. Marsh, E. Menz, T. Morgenroth, N. Petridis, J. Pibernat, U. Popp, A. Psaltis, S. Sanjari, C. Scheidenberger, M. Sguazzin, R.S. Sidhu, U. Spillmann, M. Steck, T. Stohlker, A. Surzhykov, J.A. Swartz, H. Tornqvist, L. Varga, D. Vescovi, H. Weick, M. Weigand, P. Woods, Y. Xing, T. Yamaguchi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

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.
Original languageEnglish
Article number11018
Pages (from-to)1-5
Number of pages5
JournalEPJ Web of Conferences
Publication statusPublished - 22 Mar 2023


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