https://doi.org/10.1140/epjc/s10052-017-4765-1
Regular Article - Theoretical Physics
Study of
polarization in relativistic nuclear collisions at
–200 GeV
1
INFN-Sezione di Firenze, Via G. Sansone 1, 50019, Sesto Fiorentino (Firenze), Italy
2
Bogolyubov Institute for Theoretical Physics, Ul. Metrolohichna, 14-b, Kiev, 03680, Ukraine
3
Universitá di Firenze, Via G. Sansone 1, 50019, Sesto Fiorentino (Firenze), Italy
* e-mail: yu.karpenko@gmail.com
Received:
21
October
2016
Accepted:
19
March
2017
Published online:
3
April
2017
We present a calculation of the global polarization of hyperons in relativistic Au–Au collisions at RHIC Beam Energy Scan range
GeV with a
-dimensional cascade
viscous hydro model, UrQMD
vHLLE. Within this model, the mean polarization of
in the out-of-plane direction is predicted to decrease rapidly with collision energy from a top value of about 2% at the lowest energy examined. We explore the connection between the polarization signal and thermal vorticity and estimate the feed-down contribution to
polarization due to the decay of higher mass hyperons.
© The Author(s), 2017