Project Details
Projekt
Chiral symmetry in nuclear physics (B07)
Subject Area
Nuclear and Elementary Particle Physics, Quantum Mechanics, Relativity, Fields
Term
from 2012 to 2024
Project identifier
Deutsche Forschungsgemeinschaft (DFG) - Project number 196253076
Spontaneous chiral symmetry breaking plays an important role for low-energy nuclear dynamics. Its dynamical consequences can be addressed in a model-independent and systematically improvable way by effective field theory (EFT). Combined with ab-initio few- and many-body methods, chiral EFT provides an efficient microscopic approach to analyze nuclear structure and reactions. On the other hand, collective excitation modes of triaxially deformed nuclei, showing the phenomenon of chiral bands, have stimulated the formulation of an EFT directly in terms of the collective degrees of freedom. In the second funding period we obtained a number of important results along both lines of research, including the investigation of nuclear matter with chiral forces, the role of the ∆-resonance in the long-range three-nucleon force, and the generalization and application of EFT to triaxially deformed nuclei. In the third funding period we will focus on the following topics: Nuclear forces with explicit ∆-isobars, density-dependent NN-potential from chiral four-nucleon forces, and the EFT-description of chiral doublet bands in deformed nuclei.
DFG Programme
CRC/Transregios
International Connection
China
Applicant Institution
Rheinische Friedrich-Wilhelms-Universität Bonn
Project Heads
Professor Dr. Evgeny Epelbaum, since 7/2016; Professor Dr. Norbert Kaiser; Professor Dr. Ulf-G. Meißner, until 6/2016; Professor Dr. Jie Meng, since 7/2016; Dr. Andreas Nogga, until 6/2016
