Calculations of electric and magnetic nuclear excitations beyond mean field

• Applicant: Professor Dr. Paul-Gerhard Reinhard
• Subject Area: Nuclear and Elementary Particle Physics, Quantum Mechanics, Relativity, Fields
• Term: from 2013 to 2017
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 242472764

We refer in the present application explicitly to our previous DFG Grant. In the light of our recent publication [1] we have decided to apply for a much smaller grant with a modified program. The applicants are the authors of the above mentioned publication. Here we solved the longstanding task of reproducing simultaneously the electric giant dipole resonances in light and heavy nuclei. The problem was cured by considering many-particle correlations beyond mean-field and developing an appropriate Skyrme parametrization. This program will be extended to electric isoscalar excitations (as the excitations are not coupled to good isospin we refer here to predominately isoscalar excitations) and to unnatural parity excitations. Within this approach we will be able to predict more reliably low-lying collective isoscalar states as well as strength distributions of giant electric resonances. Our program includes also spin excitation and charge exchange resonances (e.g. Gamow-Teller resonances) in stable and unstable nuclei. The results have implications for the FAIR facility and as input for astrophysical applications.

• DFG Programme: Research Grants
• Participating Person: Professor Dr. Josef Speth