Self-affine Multiplicity Fluctuation of Slow Particles in 16 O–AgBr Collisions at 3.7Agev

We study the slow particles in O-16-AgBr collisions at 3.7 A GeV in nuclear emulsion with the method of two-dimensional factorial moments using the Hurst exponent. Our investigation reveals the power law behaviour, exhibited in self-affine analysis, better than that in self-similar analysis. This work shows a clear evidence of self-affine target fragmentation.