Bulletin of the American Physical Society
6th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan
Sunday–Friday, November 26–December 1 2023; Hawaii, the Big Island
Session D01: 100 Years of Spin PhysicsInvited
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Chair: Toshi-Aki Shibata, Nihon Univ. Room: Hilton Waikoloa Village Kona 4 |
Wednesday, November 29, 2023 9:00AM - 9:45AM |
D01.00001: Spin in Quantum Theory Invited Speaker: Xiangdong Ji Discovery of spin degrees of freedom in quantum physics was an imporant milestone in 20th century science. Just like mass, spin is an intrinsic property of elementary/composite particles which detemines fundamental forms of the matter world. In this talk, I will review some of the revolutionary ideas and concepts, and fascinating phenomena that spin brought in. The role of spin in the broad areas of quantum physics inlcuding AMO, condensed matter, nuclear and particle physics, as well as "theory of everything" will be discussed |
Wednesday, November 29, 2023 9:45AM - 10:30AM |
D01.00002: Spin in Nuclear Physics Invited Speaker: Masaki Sasano An atomic nucleus is composed of protons and neutrons each with spin 1/2 and dictated by the Pauli principle. In contrast to thissimplicity based on the spin degrees of freedom, the forces acting between the ingredients have complex spin-dependent forms. Because of this characteristic composition including complexity and simplicity related to spin, the spin degrees of freedom play a crucial role in the understanding of phenomena in nuclei. For example, the concept of nuclear spin-orbit coupling, which was phenomenologically introduced by Mayer and Jensen in 1949 to explain nuclear magic numbers, is still guiding present nuclear physics, where radioactive isotopes (RI) far from the beta-stability line are actively studied in relation to broader fields such as the origin of elements. In this talk, recent developments will be reviewed with special focuses on nuclear studies using RI beams and spin-related experimental techniques. |
Wednesday, November 29, 2023 10:30AM - 11:15AM |
D01.00003: Spin in High Energy Hadron Physics Invited Speaker: Renee H Fatemi The rapid development of high energy polarized lepton and hadron beams and polarized targets in the middle of the 20th century paved the way for a new generation of experiments designed to explore spin effects in the emerging field of Quantum Chromodynamics. These experiments unveiled a dynamic landscape of quark and gluon interactions that has radically changed our simple picture of the proton and revealed novel correlations between the spin of the hadron and the parton flavor, spin and momentum, both in the initial bound state as well as in the hadronization process. This talk will present a historical overview of the evolution of spin structure in high energy hadron physics, highlighting the major discoveries as well as the new and persistent mysteries. Opportunities for future measurements at existing and future facilities will be discussed. |
Wednesday, November 29, 2023 11:15AM - 12:00PM |
D01.00004: Spin in Funndamental Physics Invited Speaker: Kenji MISHIMA Precision measurements at low energy are sensitive to phenomena on the same or even higher-energy scales as high-energy accelerator experiments. Especially studies of symmetry breaking are good probes of physics beyond the standard model of particles, such as the supersymmetry model. For example, searches for electric dipole moments of various particles, nuclei, atoms, and molecules limits the CP symmetry violation induced by new physics models. There are also experiments that search for time-reversal symmetry violation in nuclear reactions and beta decay using polarized nuclei. Spin is a key in all these experiments, and spin control continues to be developed. This talk will review the experiments with spin for fundamental physics and future prospects. |
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