München 2019 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 54: Poster

HK 54.24: Poster

Donnerstag, 21. März 2019, 16:30–19:00, Foyer Theresanium

Inelastic (e,e′γ) scattering from ¹²C and ⁹²Zr nuclei — •Doris Jakubassa-Amundsen¹ and Vladimir Ponomarev² — ¹Mathematisches Institut, LMU Muenchen — ²Institut fuer Kernphysik, TU Darmstadt

At the S-DALINAC there are electron scattering experiments in preparation which will concentrate on low-lying nuclear excitations and their subsequent radiative decay for beam energies around 70-100 MeV. By allowing for a clear separation from the background of high-spin states, such coincidence experiments are aimed at investigating nuclear structure properties of low-lying 2⁺ states of spin-zero nuclei. Within the QPM and the DWBA theory, we provide theoretical predictions for the excitation of the 2₁⁺ and 2₂⁺ states of ⁹²Zr, but we also discuss the 2₁⁺ excitation of ¹²C which was pioneered in an early experiment in 1984. Particular emphasis will be laid on the 2⁺-subshell excitations, on the photon angular distributions and on the role of bremsstrahlung as a competing process to nuclear excitation and decay.