Jet polarisation in an anisotropic medium

A bstract We study the evolution of an energetic jet which propagates in anisotropic quark-gluon plasma, as created intermediate stages ultrarelativistic heavy-ion collisions. argue that partons should acquire a non-zero average polarisation proportional to medium anisotropy. first observe anisotropy introduces difference between rates for transverse momentum broadening along two directions perpendicular axis. In turn, this leads polarisation-dependent bias BDMPS-Z medium-induced gluon branching. Accordingly, daughter gluons branching process can carry net even if their parent was unpolarised. Using these splitting rates, we construct kinetic equations describe production and transmission via multiple medium. The solutions show is efficiently produced quasi-democratic branchings, but then it rapidly washed out by subsequent due inability soft keep trace parents. Based on that, conclude survive final state only sizeable escapes