Angular distributions of projectile-associated He fragments from Pb in
duced reactions on stationary Pb target at 158 A GeV/c incident moment
um are reported, The precision of the angular measurements was about /-0.01 mrad, Two emission components are appearing in the projected an
gular spectra of the He particles, one representing fragmentation at F
ermi momentum scale, while the other one exhibits large transverse mom
entum transfer. By scaling with the incident momentum the angular spec
tra of He particles are compared with earlier reported measurements of
Au on Au interactions at 11.6 A GeV/c, The p(T) spectrum of the He pa
rticles appears the same for the two cases.