Evidence of phase transition in the break up of Kr-projectile nuclei at 0.95A GeV

Effect of system size on the traditional signatures of critical behavior in projectile multifragmentation

“…Similar distribution fitted with a power law has also been reported in nuclear fragmentation of 238 U at 0.96 AGeV, 84 Kr at 1.25 AGeV, 84 Kr at 0.95 AGeV and 131 Xe at 1.22 AGeV in nuclear emulsion [16,19,23,[28][29][30].…”

“…For Mg, considering total number of system constituents as 12, the yields of the fragments charge distribution lying between 1-6 have been re-plotted in figure 2 in log-log scale and compared with the result of our earlier works on Kr-Em at 0.95 AGeV [16]. A straight line fit to the respective data points gives the values of the exponent τ , 2.54 ± 0.417 and 2.12 ± 0.15 respectively for Mg-Em and Kr-Em interactions.…”

“…To have further insight into our sample of data, the mean values of 2nd moment of charge distribution, < M 2 >, is plotted against m in figure 5 and compared with the Kr-Em results [16]. Possible effects of system size are seen again in the position and height of the peaks.…”

“…The finite size effect thus lowers the critical point thereby resulting a possible change in the order of phase transition. A number of works [16][17][18][19][20][21][22][23][24][25][26][27], both theoretical and experimental, have been carried out to realize the role of size of the fragmenting nuclei on the traditional signatures of critical behavior and hence on nuclear MF process.…”