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We present the results of a study performed on the interactions of 10.6A GeVgold nuclei in nuclear emulsions. In a minimum bias sample of 1311 interac-tions, 5260 helium nuclei and 2622 heavy fragments were observed as Au projec-tile fragments. The experimental data are analyzed with particular emphasis oftarget separation interactions in emulsions and study of criticalexponents.Multiplicity distributions of the fast-moving projectile fragments are inves-tigated. Charged fragment moments, conditional moments as well as two and three-body asymmetries of the fast moving projectile particles are determined interms of the total charge remaining bound in the multiply charged projectilefragments. Some differences in the average yields of helium nuclei and heavierfragments are observed, which may be attributed to a target effect. However,two and three-body asymmetries and conditional moments indicate that thebreakup mechanism of the projectile seems to be independent of target mass. Welooked for evidence of critical point observable in finite nuclei by study theresulting charged fragments distributions. We have obtained the values for thecritical exponents gamma, beta and tau and compare our results with those atlower energy experiment (1.0A GeV data). The values suggest that a phasetransition like behavior, is observed.Comment: latex, revtex, 28 pages, 12 figures, 3tables, submitted to Europysics  Journal

Fragmentation and multifragmentation of 10.6A GeV gold nuclei