Apparent temperatures of 4 He projectile fragments a 4.6 A GeV incident energy

The issue of the apparent temperatures of the nuclear fragments has gained new important features in a relatively short period of time. The temperatures associated to kinetic energy spectra of the projectile fragments are calculated following to different methods. The results from the first one, regarding the method proposed by Bauer were compared with those obtained by fitting the kinetic energy distributions of the projectile fragments in the rest frame of the decaying nucleus with a Maxwellian curve. The comparison of the experimental results with similar events simulated at the same energy with RQMD 2 4 program was also performed. (authors)