Erlangen 2026 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 39: Structure and Dynamics of Nuclei VIII

HK 39.7: Talk

Thursday, March 19, 2026, 17:45–18:00, AM 00.011

Excitation-Energy Dependence of Fission Fragment Observables in the ²³⁴U(γ,f) Reaction — •Vincent Wende¹, Dimiter Balabanski⁴, Mihai Cuciuc⁴, Joachim Enders¹, Sean W. Finch², Alf Göök³, Calvin R. Howell², Annabel Ibel¹, Ronald C. Malone⁷, Maximilian Meier¹, Forrest Q.L. Friesen², Andreas Oberstedt⁴, Stephan Oberstedt⁵, Marius Peck¹, Norbert Pietralla¹, Anthony P.D Ramirez⁶, Jack A. Silano⁶, Alexandru State⁴, Gerhart Steinhilber¹, Anton P. Tonchev⁶, and Werner Tornow² — ¹Institut für Kernphysik, Fachbereich Physik, TU Darmstadt, Darmstadt, Germany — ²Triangle Universities Nuclear Laboratory, Duke University, Durham, NC, USA — ³Uppsala Universitet, Uppsala, Sweden — ⁴ELI-NP, IFIN-HH, Magurele, Romania — ⁵EC-JRC Geel, Belgium — ⁶Lawrence Livermore National Laboratory, Livermore, CA, USA — ⁷U.S. Naval Academy, Annapolis, MD, USA

Advancing the microscopic understanding of the nuclear fission process relies on high-precision experimental data. This contribution shows results of an experimental campaign at HIγS, using linearly-polarized quasi-monochromatic photon beams between 6.2 and 13 MeV in the entrance channel. Mass, total kinetic energy, and angular distributions of fission fragments have been measured simultaneously using a position-sensitive twin Frisch-grid ionization chamber, exploring the dependence of fragment observables on the excitation energy.
*This work is supported by the Deutsche Forschungsgemeinschaft (DFG) - Project-ID 499256822 - GRK 2891 ’Nuclear Photonics’.

Keywords: fission; actinide; inonization chamber; photon-induced; fission fragments