Event calendar file
Free Meson Seminars
Effect of the QCD critical point on spin polarization of Λ hyperons
by Dr. Sushant Kumar Singh (VECC, Kolkata)
Thursday, March 23, 2023
from
to
(Asia/Kolkata)
at AG 69 and on zoom
at AG 69 and on zoom
| Description |
Please contact rishi(at)theory(dot)tifr(dot)res(dot)in for the zoom meeting id and the password for this seminar. In a model study, we investigate the effect of QCD critical point on the global and local polarization of Λ hyperons assuming spin degrees of freedom to be in local thermodynamic equilibrium. For this we evaluate thermal vorticity by numerically solving the equations of relativistic causal hydrodynamics in (3+1) dimensions. The effects of the critical point are incorporated through the equation of state and the scaling behaviour of the transport coefficients. By taking an average of the polarization over a constant energy density hypersurface, we compute the mean polarization which can be observed in experiments. We find a significant suppression due to the critical point in the rapidity profile of the component of polarization along the angular momentum direction. The study suggests that the change induced by the critical point in the rapidity dependence of the spin polarization of Λ hyperons can be used as an indicator of the critical point. |
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