Temperature of protons in inelastic (d, alpha, C)+(C, Ta) collisions at 4.2A GeV/c.

The slopes of the noninvariant center-of-mass energy spectrum of protons in inelastic collisions of d, \ensuremath{\alpha}, C nuclei with carbon and tantalum targets at 4.2A GeV/c are studied. The temperatures of protons are obtained using the Boltzmann approximation of the spectra. The experimental results are compared with the calculations in the framework of the quark-gluon string model.