SMuK 2023 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 61: Structure and Dynamics of Nuclei XIII

HK 61.1: Talk

Thursday, March 23, 2023, 14:00–14:15, SCH/A117

Reconstructed gamma-ray spectra by CALIFA after proton knockout reactions (experiment s467) — •Christian Sürder¹, Ryo Taniuchi², Luke Rose², Leyla Atar¹, Marina Petri², Stefanos Paschalis², and Thorsten Kröll¹ for the R3B collaboration — ¹Institut für Kernphysik, TU Darmstadt, Darmstadt, Germany — ²School of Physics, Engineering and Technology, University of York, York, United Kingdom

An experiment to study single-particle properties of isotopes around the Ca isotopic chain was performed with the R³B setup at GSI, Darmstadt, Germany. This experiment was part of the Phase 0 program at FAIR. A cocktail beam was produced via fragmentation of a ⁸⁶Kr primary beam impinging on a ⁹Be target at a beam energy of 580MeV/A. One goal is to extract exclusive reaction cross sections in proton knockout (p,2p) reactions. Therefore it is essential to detect the knocked out protons and the coincident gammas from a de-excitation of the residual nucleus. CALIFA is a highly segmented CsI(Tl) detector which is capable of this task. To show the performance of CALIFA a strongly populated isotope is selected as a benchmark and the corresponding protons and gammas are reconstructed. The status of the analysis will be presented.

This work is supported by BMBF under contract 05P19RDFN1 and 05P21RDFN2 and the Helmholtz Research Academy Hesse for FAIR - HFHF.