Λ polarization in peripheral heavy ion collisions
Peer reviewed, Journal article
Published version
Permanent lenke
https://hdl.handle.net/1956/9168Utgivelsesdato
2013-09-13Metadata
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Originalversjon
https://doi.org/10.1103/physrevc.88.034905Sammendrag
We predict the polarization of Λ and Λ¯ hyperons in peripheral heavy ion collisions at ultrarelativistic energy, based on the assumption of local thermodynamical equilibrium at the freeze-out. The polarization vector is proportional to the curl of the inverse temperature four-vector field and its length, of the order of percents, is maximal for a particle with moderately high momentum lying on the reaction plane. A selective measurement of these particles could make Λ polarization detectable.