Abstract

The azimuthal anisotropy of the emission of fragments and relativistic particles in collisions between 56Fe nuclei of momentum 2.5 GeV/c per nucleon and photoemulsion nuclei is measured. For semicentral collisions at impact-parameter values in the range 0.12 ≤ b/bmax ≤ 0.70, charged fragments and relativistic particles are predominantly emitted in the direction orthogonal to the nuclear-reaction plane. The azimuthal-asymmetry parameter P2 for fragments whose charge numbers are Z = 1, 2 and Z ≥ 3 takes values of, respectively, −0.192±0.057, −0.28±0.07, and −0.39±0.12. Evaporated b particles have an isotropic azimuthal distribution.

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