Experimental exploration of electroweak interactions in nuclei (B02)

• Subject Area: Nuclear and Elementary Particle Physics, Quantum Mechanics, Relativity, Fields
• Term: since 2016
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 279384907

Project B02 provides experimental constraints for electroweak interactions in nuclei and nuclear-structure aspects relevant to nuclear astrophysics. We will focus on the isovector spin M1 strength, the electromagnetic analog of their Gamow-Teller strength, by a complete quantification of the M1 and E1 excitation strength distributions from measurements at the S-DALINAC in Darmstadt and at HIgS, USA. The combination of experiments using nuclear resonance fluorescence and electron-gamma coincidence spectroscopy will provide absolute M1 excitation strengths up to the particle threshold for N=50 nuclei. These data will be confronted with shell-model calculations and will benefit the modelling of core-collapse supernovae.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 1245: Nuclei: From Fundamental Interactions to Structure and Stars
• Applicant Institution: Technische Universität Darmstadt
• Project Heads: Professor Dr. Joachim Enders, until 12/2019; Professor Dr. Peter von Neumann-Cosel, until 12/2023; Professor Dr. Norbert Andreas Pietralla, since 1/2024; Dr. Volker Werner, since 1/2020