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HK: Fachverband Physik der Hadronen und Kerne
HK 70: Structure and Dynamics of Nuclei XII
HK 70.6: Talk
Thursday, March 31, 2022, 17:30–17:45, HK-H6
Electron-Gamma Coincidence Experiments at the S-DALINAC — •Gerhart Steinhilber, Jonny Birkhan, Isabelle Brandherm, Martha Liliana Cortes, Florian Gaffron, Johann Isaak, Igor Jurosevic, Peter von Neumann-Cosel, Florian Niederschuh, Norbert Pietralla, Maxim Singer, and Maximilian Spall — IKP, Technische Universität Darmstadt
Inclusive (e,e’) electron scattering is an established tool in nuclear physics that provides insights in nuclear structure with high accuracy because of its pure electromagnetic nature. In (e,e’γ) coincidence experiments, the advantage of inclusive electron scattering is preserved and additional information, for example, γ-decay branchings of PDR/GDR and the interference of longitudinal and transversal components of low-lying electric dipole excitations are accessible. The existing (e,e’) setup at S-DALINAC was extended by a detector array consisting of 6 LaBr3:Ce detectors and successful (e,e’γ) measurements were conducted for the first time since the pioneering (e,e’γ) experiment nearly 40 years ago [1]. In 2021, a first production run was performed using the new (e,e’γ) setup to study the B(M1,2ms+→21+) and B(E2,2ms+→01+) transition strength of the 2ms+ branching in 96Ru [2] measuring γ-decay branchings. This talk will present the new setup and preliminary results of the 96Ru measurement.
Work supported by DFG (GRK 2128)
[1] C. N. Papanicolas et al., Phys. Rev. Lett. 54 (1985).
[2] N. Pietralla et al., Phys. Rev. C 64 (2001).