Köln 2025 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

HK: Fachverband Physik der Hadronen und Kerne

HK 1: Structure and Dynamics of Nuclei I

HK 1.5: Vortrag

Montag, 10. März 2025, 16:15–16:30, HS 2 Physik

Determination of the energy-resolvable E1- and M1-strength distribution in ⁷⁰Zn — •J. Hauf¹, V. Werner¹, A. D. Ayangeakaa^2,3, D. Balabanski^4,5, M. Beuschlein¹, R. Beyer⁶, S. W. Finch^2,7, A. Gupta¹, D. Gribble^2,3, T. Hensel⁶, M. Heumüller¹, F. E. Idoku^2,3, J. Isaak¹, X. James^2,3, R. V. F. Janssens^2,3, S. R. Johnson^2,3, A. Junghans⁶, J. Kleemann¹, P. Koseoglou¹, T. Kowalewski^2,3, A. Kusoglu⁴, J. Lu¹, E. Masha⁶, C. M. Nickel¹, O. Papst¹, M. Pichotta⁶, N. Pietralla¹, K. Prifti¹, K. Römer⁶, A. Saracino^2,3, P.-A. Söderström⁴, K. Schmidt⁶, R. Schwengner⁶, A. Thees⁶, S. Turkat⁶, J. Vogel¹, A. Wagner⁶, and A. Yadev⁶ — ¹TU Darmstadt, IKP — ²TUNL — ³University of North Carolina — ⁴ELI-NP — ⁵Horia Hulubei National Institute — ⁶Helmholtz-Zentrum Dresden-Rossendorf — ⁷Duke University

Nuclear resonance fluorescence experiments with bremsstrahlung and quasi-monoenergetic photon beams have been conducted on ⁷⁰Zn at γELBE and HIγS. The investigation of the most neutron-rich stable zinc isotope aims to achieve a better understanding of nuclear structure phenomena, such as shape coexistence and the Pygmy dipole resonance, at the N=40 harmonic oscillator shell closure. The status of the analysis, including spectra and preliminary results for the E1- and M1-strength distributions, are shown and discussed.

This work is supported by DFG under Project-IDs 499256822*GRK 2891, 279384907*SFB 1245 and by ELI-RO under ELI-RO/RDI/2024 002 and ELI-RO/RDI/2024 007.

Keywords: Nuclear resonance fluorescence; Model independent; Shape coexistence; Pygmy dipole resonance; Nuclear structure