Conveners
Fundamental Interactions, Nuclear and Particle Physics
- Wim Cosyn (UGent)
Our understanding of the structure of the atomic nucleus, previously based on the information collected on stable nuclei, has been severely challenged in the last thirty years, since systematic research on nuclei far from stability was started. The unusual neutron-to-proton ratio of those systems revealed special features of the underlying nucleon-nucleon interaction, reflected in...
Pairing is an essential ingredient to understand the low-energy structure of atomic nuclei [1]. Whereas the Bardeen-Cooper-Schrieffer (BCS) Ansatz has proven very successful in capturing the collective nature of the nuclear pair excitations, there remain some important deficiencies related to finite-size effects of the nuclear many-body problem [1]. Richardson and Gaudin (RG) have shown that...
We address the state-of-the-art and prospects of the study of three-dimensional intrinsic structure of the nucleon, one of the hot topics in modern high-energy hadron physics. We give an overview of the relevant experiments at current and planned facilities and discuss the most urgent issues in the theory of string interaction - Quantum Chromodynamics - related to the 3D-imaging of the nucleon.
In the quest for new physics beyond the Standard Model, decay channels in leptons or photons are particularly interesting, since they arise in clean final states, allowing quick and well defined strategy of analysis.
Resonances in the dielectron and dimuon decay channels arise in many well established theories beyond the standard model, like grand unified theories (GUT) or models proposing...
Important features of physical systems; non-perturbative phenomena, cannot be captured by the most wildly used tool in physics: perturbation theory. Perturbation theory is indeed inherently not complete answer. In QCD for example, the growing number of diagrams implies that perturbation theory does not give a finite result to physical quantities or cannot explain the appearance of a mass...
When one observes the phenomena in our universe, one notices that the Standard Model (SM) fails to explain several outstanding problems, such as dark matter or dark energy. These shortcomings can be addressed by new physics extensions including new particles and symmetries at higher energy scales. At present, the hope is that unambiguous signals for such new physics will be discovered in the...
The study of fission fragment de-excitation is important for both nuclear applications and fundamental nuclear physics. For modelling innovative nuclear reactor (GEN-IV) cores, a better understanding of the released heat during fission of the major isotopes (235U,239Pu) is crucial. Present knowledge on the released heat states that around 10% of all energy released in fission comes from...
