Heavy Baryon Clusters and Search for Signals of Quark Matter Formation
Abstract
New experimental data are discussed on the distribution of protons over transverse momentum of p⊥ in the Fe + Em process at energies 2-200 GeV/n and of α-particles in the Au + Em process at incident energy 10.7 GeV/n. A possible interpretation of the experiment within the framework of the gluon dominance and the thermodynamic approximation can be achieved with a minor additional assumption only. This assumption is that at an early stage of evolution of the heavy baryon cluster matter the quark matter transforms into baryons at a temperature T≈0.22 GeV and its global decay into nucleons is completed at T≈0.14 GeV. The results are also of interest in connection with the problem of abundance of helium and hydrogen in the universe which has been considered in cosmology and astrophysics for a long time.
- Publication:
-
Physica Scripta
- Pub Date:
- 2000
- DOI:
- 10.1238/Physica.Regular.061a00314
- Bibcode:
- 2000PhyS...61..314G
- Keywords:
-
- 24.85.+p 25.70.Mn 25.75.+1 98.80.Bp 98.80.Ft