Jul 22 – 26, 2024
West University of Timisoara
Europe/Bucharest timezone

Chiral restoration driven spin polarization

Jul 26, 2024, 11:00 AM
30m
Amphitheater A11 (West University of Timisoara)

Amphitheater A11

West University of Timisoara

Bulevardul Vasile Pârvan 4, Timișoara 300223, Romania https://www.uvt.ro/en/

Speaker

Radoslaw Ryblewski (Institute of Nuclear Physics PAN, Kraków, Poland)

Description

Semiclassical expansion of the Wigner function for spin-1/2 fermions having an effective spacetime-dependent mass is used to analyze spin-polarization effects. The existing framework is reformulated to obtain a differential equation directly connecting the particle spin tensor with the effective mass. It reflects the conservation of the total angular momentum in a system. In general, we find that the gradients of mass act as a source of the spin polarization. Although this effect is absent for simple boost-invariant dynamics, an extension to non-boost-invariant systems displays a non-trivial dependence of the spin density on the mass indicating that the spin polarization effects may be intertwined with the phenomenon of chiral restoration.


Reference: Physics Letters B 849 (2024) 138464 • e-Print: 2307.12436 [hep-ph]

Primary authors

Dr Arpan Das (Birla Institute of Technology and Science) Dr Gowthama K.K. (Indian Institute of Technology Gandhinagar) Radoslaw Ryblewski (Institute of Nuclear Physics PAN, Kraków, Poland) Dr Samapan Bhadury (Jagiellonian University) Prof. Wojciech Florkowski (Jagiellonian University)

Presentation materials