SPIN-THERMAL SHEAR COUPLING IN RELATIVISTIC NUCLEAR COLLISIONS

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F23%3A00381522" target="_blank" >RIV/68407700:21340/23:00381522 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.5506/APhysPolBSupp.16.1-A39" target="_blank" >https://doi.org/10.5506/APhysPolBSupp.16.1-A39</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5506/APhysPolBSupp.16.1-A39" target="_blank" >10.5506/APhysPolBSupp.16.1-A39</a>

Result language
angličtina
Original language name
SPIN-THERMAL SHEAR COUPLING IN RELATIVISTIC NUCLEAR COLLISIONS
Original language description
The spin polarization measurements of particles emitted in heavy-ion collisions have opened the possibility for new phenomenological investigations of spin physics in relativistic fluids. The theoretical predictions of global polarization are in agreement with the data, but consistent discrepancies stand out for the local polarization. We show that the covariant theory of relativistic quantum fluids at the local equilibrium implies an additional, non-dissipative contribution to the spin polarization vector, which is proportional to the thermal shear, which has been previously overlooked. This additional contribution, together with an improved approximation in the expansion of the local equilibrium density operator, restores the quantitative agreement between the theoretical predictions and the experimental data.
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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