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 2WDB: Chirality and Vorticity IVInvited Workshop
|
Hide Abstracts |
Chair: Yoshimasa Hidaka, KEK Room: Hilton Waikoloa Village Kings 2 |
Sunday, November 26, 2023 4:00PM - 4:30PM |
2WDB.00001: Phase transition of QCD under rotation and revisit from a bag model Invited Speaker: Kazuya Mameda In this talk, I review the recent theoretical developments in the QCD thermodynamics under an external rotation. Followed by brilliant experimental measurements of a strong vorticity in QGP, a crucial task on the theoretical side is to reveal the vortical or rotational effect on quantum field theory. For the past few years, especially, various model approaches elucidated that rotation favors both chiral restoration and deconfinement. On the other hand, the first principle lattice QCD simulation cannot be directly applied to rotating systems, due to the sign problem. Nevertheless, some simulations with an imaginary angular velocity indicate an inconsistent result with the model prediction, although an issue about an analytic structure would be involved in the lattice simulation itself. To clarify such a gap between the model approaches and lattice simulation, I revisit the deconfinement transition based on the bag model under rotation. I demonstrate that the transition temperature becomes an increasing (decreasing) function of angular velocity, if we do (do not) take into account the revolution effect of the confinement potential. This result implies that the correction to the QCD interactions would be an overlooked but crucial ingredient to determine the thermodynamics of rotating quark and gluons. |
Sunday, November 26, 2023 4:30PM - 5:00PM |
2WDB.00002: Hydrodynamic approach to spin relaxation in quark-gluon plasma Invited Speaker: Masaru Hongo The recent experimental observation of the spin polarization of hadrons in off-central relativistic heavy-ion collisions at RHIC and LHC has strongly motivated theoretical and phenomenological study of the dynamical evolution of spin polarization in a finite temperature plasma. Unlike nonrelativistic systems where spin-orbit coupling is suppressed, relativistic systems exhibit non-conservation of the spin angular momentum, which can be transferred to the orbital angular momentum. As a result, the spin density in relativistic systems, in general, exhibits a relaxation behavior toward its local equilibrium value in hydrodynamics. Therefore, it is essential to establish a theoretical framework that describes spin dynamics in quark-gluon plasma, providing a solid foundation for the analysis of the spin polarization observed in heavy-ion collision experiments. |
Sunday, November 26, 2023 5:00PM - 5:30PM |
2WDB.00003: Summary, Outlook and Interdisciplinary Impacts Invited Speaker: Kenji Fukushima I will make a summary of the present and the future perspectives about physics related to chirality and vorticity and possible applications to fields outside of nuclear physics such as astro-nuclear physics and optical sciences. |
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700