# Effect of thermal shear on longitudinal spin polarization in a thermal model

@article{Florkowski2021EffectOT, title={Effect of thermal shear on longitudinal spin polarization in a thermal model}, author={Wojciech Florkowski and Avdhesh Kumar and Aleksas Mazeliauskas and Radoslaw Ryblewski}, journal={Physical Review C}, year={2021} }

By including the recently introduced thermal shear term that contributes to the spin polarization vector at local equilibrium, we determine longitudinal polarization of Λ hyperons emitted from a hot and rotating hadronic medium using the thermal model with single freeze-out. In our analysis, we consider the RHIC top energies and use the model parameters which were determined in the earlier analyses of particle spectra and elliptic flow. We confirm that, unlike the previous calculations done by…

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## References

SHOWING 1-10 OF 41 REFERENCES

### Longitudinal spin polarization in a thermal model

- PhysicsPhysical Review C
- 2019

We use a thermal model with single freeze-out to determine longitudinal polarization of Λ hyperons emitted from a hot and rotating hadronic medium. We consider the top RHIC energies and use the model…

### Shear-Induced Spin Polarization in Heavy-Ion Collisions.

- PhysicsPhysical review letters
- 2021

The spin polarization generated by the hydrodynamic gradients is studied and it is found that SIP contribution always shows the same azimuthal angle dependence as experimental data and competing with thermal vorticity effects.

### Spin polarization induced by the hydrodynamic gradients

- PhysicsJournal of High Energy Physics
- 2021

We systematically analyze the effects of the derivatives of the hydrodynamic fields on axial Wigner function that describes the spin polarization vector in phase space. We have included all possible…

### Global hyperon polarization at local thermodynamic equilibrium with vorticity, magnetic field and feed-down

- Physics
- 2017

The system created in ultrarelativistic nuclear collisions is known to behave as an almost ideal liquid. In noncentral collisions, because of the large orbital momentum, such a system might be the…

### Thermodynamic versus kinetic approach to polarization-vorticity coupling

- PhysicsPhysical Review C
- 2018

We critically compare thermodynamic and kinetic approaches that have been recently used to study relations between the spin polarization and fluid vorticity in systems consisting of spin-1/2…

### Generating Spin Polarization from Vorticity through Nonlocal Collisions.

- PhysicsPhysical review letters
- 2021

It is shown that the collision term in the Boltzmann equation vanishes in global equilibrium and that the spin potential is, then, equal to the thermal vorticity.

### Vortical Fluid and Λ Spin Correlations in High-Energy Heavy-Ion Collisions.

- PhysicsPhysical review letters
- 2016

Using a (3+1)D viscous hydrodynamic model with fluctuating initial conditions from a multiphase transport (AMPT) model, two vortical structures are revealed: a right-handed toroidal structure around each beam direction for transverse vorticity and pairing of longitudinal vortices with opposite signs in the transverse plane.

### Relativistic distribution function for particles with spin at local thermodynamical equilibrium

- Physics
- 2013

### Polarization and Vorticity in the Quark–Gluon Plasma

- PhysicsAnnual Review of Nuclear and Particle Science
- 2020

The quark–gluon plasma (QGP) produced by collisions between ultrarelativistic heavy nuclei is well described in the language of hydrodynamics. Noncentral collisions are characterized by very large…