Spin and polarization: a new direction in relativistic heavy ion physics

Abstract

Since the first evidence of a global polarization of $\Lambda$ hyperons in relativistic nuclear collisions in 2017, spin has opened a new window in the field, both at experimental and theoretical level, and an exciting perspective. The current state of the field is reviewed with regard to the theoretical understanding of the data, reporting on the most recent achievements and envisioning possible developments. The intriguing connections of spin physics in relativistic matter with fundamental questions in quantum field theory and applications in the non-relativistic domain are discussed.

16 pages, published in Reports on Progress in Physics

References in corpus (21)

• The Chiral Magnetic Effect
• Angular momentum conservation in heavy ion collisions at very high energy
• Shear-induced spin polarization in heavy-ion collisions
• Fate of spin polarization in a relativistic fluid: An entropy-current analysis
• Local polarization and isothermal local equilibrium in relativistic heavy ion collisions
• Spin-thermal shear coupling in a relativistic fluid
• Relativistic spin hydrodynamics with torsion and linear response theory for spin relaxation
• Spin polarization induced by the hydrodynamic gradients
• Non-dissipative second-order transport, spin, and pseudo-gauge transformations in hydrodynamics
• From Chiral Kinetic Theory To Relativistic Viscous Spin Hydrodynamics
• Derivation of the nonlocal collision term in the relativistic Boltzmann equation for massive spin-1/2 particles from quantum field theory
• Global polarization of $\Xi$ and $\Omega$ hyperons in Au+Au collisions at $\sqrt{s_{{}_{NN}}}$ = 200 GeV
• Dissipative Spin Dynamics in Relativistic Matter
• Reexamination of local spin polarization beyond global equilibrium in relativistic heavy ion collisions
• From Kadanoff--Baym to Boltzmann equations for massive spin-1/2 fermions
• Local spin alignment of vector mesons in relativistic heavy-ion collisions
• Thermodynamical inequivalence of quantum stress-energy and spin tensors
• Local Equilibrium Spin Distribution From Detailed Balance
• Hyperon Polarization from the Vortical Fluid in Low Energy Nuclear Collisions
• Kubo formulae for first-order spin hydrodynamics
• Λ polarization from thermalized jet energy

Cited by in corpus (22)

• The Present and Future of QCD
• New developments in relativistic magnetohydrodynamics
• Spin alignment of vector mesons by glasma fields
• The causality and stability of relativistic spin-hydrodynamics
• Spin alignment of vector mesons by second-order hydrodynamic gradients
• Vector meson's spin alignments in high energy reactions
• Spin polarization and correlation of quarks from glasma
• Boost invariant spin hydrodynamics within the first order in derivative expansion
• Negative Barnett effect, negative moment of inertia of gluon plasma and thermal evaporation of chromomagnetic condensate
• An introduction to relativistic spin hydrodynamics
• Collisional corrections to spin polarization from quantum kinetic theory using Chapman-Enskog expansion
• Suppression of thermal vorticity as an indicator of QCD critical point
• Propagation of spin channel waves
• Hyperfluid model revisited
• Chiral and deconfinement thermal transitions at finite quark spin polarization in lattice QCD simulations
• Vortical waves in a quantum fluid with vector, axial, and helical charges. I. Non-dissipative transport
• Estimating Longitudinal Polarization of $\Lambda$ and $\bar{\Lambda }$ Hyperons at Relativistic Energies using Hydrodynamic and Transport models
• Berry Curvature and Spin-One Color Superconductivity
• Chiral restoration temperature at finite spin density in QCD
• Tensor spin polarization induced by curved freeze-out hypersurface
• An improved formula for Wigner function and spin polarization in a decoupling relativistic fluid at local thermodynamic equilibrium
• Chromomagnetic Condensate in Finite-Temperature SU(2) Yang-Mills Theory under Imaginary Rotation