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Vorticity and Spin Polarization in Heavy Ion Collisions: Transport Models
Xu-Guang Huang, Jinfeng Liao, Qun Wang +1
Heavy ion collisions generate strong fluid vorticty in the produced hot quark-gluon matter which could in turn induce measurable spin polarization of hadrons. We review recent prog…
Local spin alignment of vector mesons in relativistic heavy-ion collisions
Xiao-Liang Xia, Hui Li, Xu-Guang Huang +1
We investigate the spin alignment of vector mesons arising from locally polarized quarks and anti-quarks (local spin alignment) in heavy-ion collisions. We find that $ρ_{00}\neq 1/…
Dynamic scale anomalous transport in QCD with electromagnetic background
Mamiya Kawaguchi, Shinya Matsuzaki, Xu-Guang Huang
We discuss phenomenological implications of the anomalous transport induced by the scale anomaly in QCD coupled to an electromagnetic (EM) field, based on a dilaton effective theor…
Zilch Vortical Effect, Berry Phase, and Kinetic Theory
Xu-Guang Huang, Pavel Mitkin, Andrey V. Sadofyev +1
Rotating photon gas exhibits a chirality separation along the angular velocity which is manifested through a generation of helicity and zilch currents. In this paper we study this…
Kinetic theory with spin: From massive to massless fermions
Xin-Li Sheng, Qun Wang, Xu-Guang Huang
We find that the recently developed kinetic theories with spin for massive and massless fermions are smoothly connected. By introducing a reference-frame vector, we decompose the d…
Anomalous chiral transports and spin polarization in heavy-ion collisions
Yu-Chen Liu, Xu-Guang Huang
Relativistic heavy-ion collisions create hot quark-gluon plasma as well as very strong electromagnetic (EM) and fluid vortical fields. The strong EM field and vorticity can induce…
Vorticity and Spin Polarization --- A Theoretical Perspective
Xu-Guang Huang
We give a theoretical perspective on the vorticity and spin polarization in heavy-ion collisions. We discuss the recent progress in spin hydrodynamics and spin kinetic theory. We a…
Local Spin Polarization in 200 GeV Au+Au and 2.76 TeV Pb+Pb Collisions
Hong-Zhong Wu, Long-Gang Pang, Xu-Guang Huang +1
We calculated the azimuthal angle dependence of the local spin polarization of hyperons in 200 GeV Au+Au and 2.76 TeV Pb+Pb collisions in the framework of the (3+1)D viscous hydrod…
Signatures of the vortical quark-gluon plasma in hadron yields
P Collaboration, Hidetoshi Taya, Aaron Park +10
We investigate the hadron production from the vortical quark-gluon plasma created in heavy-ion collisions. Based on the quark-coalescence and statistical hadronization models, we s…
Covariant Spin Kinetic Theory I: Collisionless Limit
Yu-Chen Liu, Kazuya Mameda, Xu-Guang Huang
We develop a covariant kinetic theory for massive fermions in curved spacetime and external electromagnetic field based on quantum field theory. We derive four coupled semi-classic…
Vorticity in low-energy heavy-ion collisions
Xian-Gai Deng, Xu-Guang Huang, Yu-Gang Ma +1
We study the kinematic and thermal vorticities in low-energy heavy-ion collisions by using the Ultra-relativistic Quantum Molecular Dynamics (UrQMD) model. We explore their time ev…