Europhys. Lett., 63 (6) , pp. 805-811 (2003)
Self-affinity and phase transition study in target fragmentation of - interactions at 14.5D. Ghosh, A. Deb, S. Bhattacharyya and J. Ghosh
Nuclear and Particle Physics Research Centre, Department of Physics Jadavpur University - Kolkata 700 032, India
(Received 3 February 2003; accepted in final form 11 July 2003)
This paper reports the first evidence of non-thermal phase transition in the target fragmentation of - interactions at 14.5 . Factorial moment analysis has been performed in two dimensions taking into consideration the anisotropicity of the phase space. A signal of non-thermal phase transition is obtained by carrying out the investigation at that partitioning of phase space where the anisotropic scaling (self-affinity) behavior of dynamical fluctuation is best revealed. A signal of multifractality is also observed from the knowledge of anomalous fractal dimension dq extracted from the intermittency exponent at the anisotropic phase space scenario.
25.75.-q - Relativistic heavy-ion collisions.
25.70.Mn - Projectile and target fragmentation.
24.60.Ky - Fluctuation phenomena.
© EDP Sciences 2003