UNISA-Brazil Symposium

Session

Session 1

26 Oct 2026, 09:25

Conveners

Session 1

• Mantile Lekala

39. [PLENARY TOPIC] Universality in few-body nuclear and atomic physics

Tobias Frederico (Instituto Tecnológico de Aeronáutica)

26/10/2026, 09:25

Oral Presentation

Few-body systems near the Efimov limit exhibit universal, model-independent properties governed by only a few physical scales, especially when the interactions can be treated in the zero-range limit. Such a physical regime can be realized in weakly bound nuclear systems, and in such cases universality is associated to correlations between observables that form model-independent limit cycles,...

3. Chaos and magnetisation waves in arrays of superconductor— ferromagnet—superconductor $\varphi_0$ Josephson junctions

Andre E. Botha (University of South Africa)

26/10/2026, 10:05

Oral Presentation

We discuss a discrete model of an annular array of underdamped superconductor—ferromagnet—superconductor $\varphi_0$ Josephson junctions. In this model, the anomalous $\varphi_0$ phase shift arises because of the superconducting proximity effect in the magnetic layer with broken inversion symmetry. It produces a bi-directional, direct coupling between the superconducting part of the applied...

11. Interplay of pairing localization and deformation in the newly observed $^{12}$C cluster decay of proton-rich $^{116}$Cs

Joshua Tolulope Majekodunmi (University Of South Africa)

26/10/2026, 10:25

Oral Presentation

Outside the conventional trans-lead region, the recently identified $^{12}$C emission from the odd-odd proton-rich nucleus $^{116}$Cs was found to be more probable than predicted by existing macroscopic and semi-empirical systematics, motivating a microscopic description of its cluster-formation and tunnelling dynamics. We investigate how pairing correlations and deformation govern the...