D. Ghosh et al., Evidence of non-statistical fluctuation in medium-energy protons emitted in the fragmentation process of ultra-relativistic nuclear interaction, EUROPH LETT, 48(5), 1999, pp. 508-512
The analysis of medium-energy grey protons emitted from ultra-relativistic
interactions initiated by O-16-AgBr at 60 GeV/nucleon and S-32-AgBr at 200
GeV/nucleon reveals the existence of emission asymmetry in the azimuthal pl
ane which is found to depend on the target excitation but to be nearly inde
pendent of projectile mass and energy.