https://doi.org/10.1051/epjconf/202327904003
Coulomb dissociation of 16O into 4He and 12C
1 Goethe Universität Frankfurt, Germany
2 Facility for Antiproton and Ion Research in Europe GmbH, Germany
3 GSI Helmholtzzentrum für Schwerionenforschung Darmstadt, Germany
4 University of Edinburgh, United Kingdom
5 University of York, United Kingdom
6 King Saud University, Saudi Arabia
7 University of Santiago de Compostela, Spain
8 Technische Universität Darmstadt, Germany
9 Helmholtz-Zentrum Dresden-Rossendorf, Germany
10 Texas A&M University-Commerce, USA
11 CINTECX, Universidade de Vigo, Spain
12 Lund University, Sweden
13 NRC Kurchatov Institute Moscow, Russia
14 INFN-Sezione di Catania, Italy
15 Universidad de Huelva, Spain
16 ATOMKI Debrecen, Hungary
17 Rud¯er Boškovic´ Institute, Zagreb, Croatia
18 University of Lisboa, Portugal
19 CSIC Madrid, Spain
20 Università di Catania, Italy
21 Technische Universität München, Germany
22 Institut Pluridisciplinaire Hubert CURIEN, France
23 Chalmers University of Technology, Sweden
24 Technische Universität Dresden, Germany
25 Eötvös Loránd University, Hungary
26 ESRIG, University of Groningen, The Netherlands
27 GANIL, France
28 University of Applied Science Aachen, Germany
29 INFN Laboratori Nazionali del Sud, Italy
30 RIKEN, Nishina Center for Accelerator-Based Science, Japan
31 IFIC, CSIC-Universidad de Valencia, Spain
32 Center for Exotic Nuclear Studies, Institute for Basic Science, Republic of Korea
33 Università degli Studi di Messina, Italy
* e-mail: bott@iap.uni-frankfurt.de
Published online: 22 March 2023
We measured the Coulomb dissociation of 16O into 4He and 12C within the FAIR Phase-0 program at GSI Helmholtzzentrum für Schwerionenforschung Darmstadt, Germany. From this we will extract the photon dissociation cross section 16O(α,γ)12C, which is the time reversed reaction to 12C(α,γ)16O. With this indirect method, we aim to improve on the accuracy of the experimental data at lower energies than measured so far.
The expected low cross section for the Coulomb dissociation reaction and close magnetic rigidity of beam and fragments demand a high precision measurement. Hence, new detector systems were built and radical changes to the R3B setup were necessary to cope with the high-intensity 16O beam. All tracking detectors were designed to let the unreacted 16O ions pass, while detecting the 12C and 4He.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
