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HK: Fachverband Physik der Hadronen und Kerne
HK 14: Structure and Dynamics of Nuclei III
HK 14.3: Vortrag
Dienstag, 12. März 2024, 16:15–16:30, HBR 14: HS 1
The dipole response of 64Ni below the neutron-separation threshold — •Miriam Müscher1, Johann Isaak2, Florian Kluwig1, Deniz Savran3, Tanja Schüttler1, Ronald Schwengner4, and Andreas Zilges1 — 1University of Cologne, Institute for Nuclear Physics, Germany — 2TU Darmstadt, Institute for Nuclear Physics, Germany — 3GSI, Darmstadt, Germany — 4Helmholtz-Zentrum Dresden-Rossendorf, Germany
Real-photon scattering is an ideal method to study the dipole response of atomic nuclei due to the low angular-momentum transfer of photons [1]. Systematic investigations of dipole-excitation modes along isotopic and isotonic chains aim for a better understanding of their underlying structures. The Z=28 isotopic chain is well suited for this purpose due to its four stable, even-even isotopes. Therefore, real-photon scattering experiments have already been conducted on 58,60,62Ni [2-5].
To complete these studies, two complementary (γ,γ′) experiments were performed on 64Ni to extract absolute cross sections and to distinguish electric and magnetic dipole transitions up to the neutron-separation threshold Sn=9.7 MeV. In this contribution, experimental details and results will be presented.
This work is supported by the BMBF (05P21PKEN9).
[1] A. Zilges et al., Prog. Part. Nucl. Phys. 122 (2022) 103903.
[2] F. Bauwens et al., Phys. Rev. C 62 (2000) 024302.
[3] M. Scheck et al., Phys. Rev. C 88 (2013) 044304.
[4] M. Scheck et al., Phys. Rev. C 87 (2013) 051304(R).
[5] T. Schüttler, Bachelor’s Thesis, University of Cologne (2023).
Keywords: Nuclear Resonance Fluorescence; Low-Lying Dipole Strength; Nickel