The temperatures of protons andπ− mesons in central nucleus-nucleus interactions at a momentum of 4.5 GeV/c per incident nucleon

Autor: Chkhaidze, L., Dzobava, T., Kharkhelauri, L., Tuliani, I., Okonov, E., Vardenga, G., Taran, G.
Zdroj: Zeitschrift für Physik C Particles and Fields; June 1992, Vol. 54 Issue: 2 p179-183, 5p
Abstrakt: An estimate of the temperature of protons andp- mesons in central He-Li, He-C, C-C, C-Ne, C-Cu, C-Pb, O-Pb, Mg-Mg interactions is presented. The results indicate an increase of the proton temperature with increasing mass numbers of projectile and target nuclei (Ap,AT) fromTp=(118±3) MeV for He-Li toTp=(141±2) MeV for C-Pb. The temperature ofp- mesons does not depend onAP,AT andTp?95 MeV. A satisfactory fit forp- mesons in C-Cu, C-Pb, O-Pb, Mg-Mg collisions can be achieved by using a form involving two temperatures,T1 andT2. The relative yield of the high temperature component (T2) is ?24% for C-Cu, C-Pb, and Mg-Mg interactions. The observed results forTP in C-Ne, C-Cu and C-Pb collisions are consistent with the prediction of the thermodynamic hagedorn model.
Databáze: Supplemental Index
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