Conveners
Session 12: Nuclear Structure, Reactions and Dynamics
- AJ Mitchell (Australian National University)
Photon beams provide a uniquely selective probe of the spatial distributions of charge and current within nuclei. Their well-defined spin selectivity and high sensitivity to transition strengths enable spectroscopic studies of dipole excitations with minimal dependence on nuclear models. This approach is particularly powerful for mapping the distribution of electric and magnetic dipole...
Answers to some of the most fundamental questions in science, such as the mass and character of the neutrino, the nature of dark matter, or the abundance of matter over antimatter, might very well reside in the physics of the atomic nucleus. As the role of nuclei in unraveling such mysteries continues to deepen, first-principles quantum simulations, beginning from only underlying nuclear/weak...
A systematic system of Coulomb barriers is investigated where nucleus-nucleus interactions are calculated within double-folding formalisms consisting of various nucleon interactions. It is shown that for nuclear reactions involving two light nucleons or a light and a heavy nucleus, even with purely simple attractive nucleons, their calculated Coulomb barriers fit experimental ones(within error...
This study uses the Continuum Discretized Coupled Channels (CDCC) formalism to investigate the breakup of the neutron-halo nucleus 11Be on a Pb target at and below the Coulomb barrier.
The research finds that at sub-barrier incident energies; the breakup cross section is more significant than the total fusion cross section. This is attributed to a strong enhancement of the breakup cross...
A study of breakup reactions involving the $^9$C and $^{30}$F weakly bound nuclei is presented. The $^9{\rm C}$ is modelled as $^9{\rm C}\to{}^8{\rm B}+p$, where $^8{\rm B}\to{}^7{\rm Be}+p$, with a proton ground state separation energy of $S_p=-0.137$\,MeV. The $^{30}$F is modelled as $^{30}{\rm F}\to{}^{29}{\rm F}+n$, where $^{29}{\rm F}\to{}^{27}{\rm F}+n+n$, with a two neutrons ground...
The low-energy spectrum in $^{254}$No is investigated in the framework of fully self-consistent Quasiparticle-Random-Phase-Approximation (QRPA) method with Skyrme forces (SLy5, SLy6, SkM*, SVbas and SG2) is applied. We propose description of the low-lying characteristic on nuclei so called M1 ”spin scissors” mode. Despite the name, the main contribution is made by the orbital current [1,2],...
Atomic nuclei play a central role in processes that govern the synthesis of chemical elements, provide unique laboratories for probing fundamental interactions, and offer critical tests of the Standard Model of particle physics. Recent advances in nuclear theory, combined with the power of high-performance computing, now enable unified ab initio calculations of nuclear structure and reactions...
