Physical processes in the universe at the epoch of the quark-hadron transition

Abstract

view Abstract Citations (14) References (12) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Physical processes in the universe at the epoch of the quark-hadron transition Bonometto, S. A. ; Sakellariadou, M. Abstract Quantum chromodynamics (QCD) Monte Carlo computations on the lattice make it possible to draw a number of significant conclusions on the evolution of the universe at the epoch of the quark-hadron transition. It is pointed out that in recent years QCD has had a number of significant successes in describing strong interactions. The basic constituents of strongly interacting matter (s.i.m.) are claimed to be quarks and gluons. Quarks are fermions whose strong charge is called color. At lower temperatures, QCD forces tend to confine quarks in systems with overall zero color change; these systems are the hadrons (baryons and mesons). The epoch of the quark-hadron transition in a homogeneous and isotropic model is considered, and the time dependence of the temperature at this epoch is shown with the aid of a graph. Main findings of the considered investigation are related to the role of radiation and leptons, and the existence of a temperature plateau. Publication: The Astrophysical Journal Pub Date: July 1984 DOI: 10.1086/162212 Bibcode: 1984ApJ...282..370B Keywords: Cosmology; Elementary Particle Interactions; Hadrons; Quantum Chromodynamics; Quarks; Universe; Gluons; Leptons; Strong Interactions (Field Theory); Temperature Effects; Astrophysics full text sources ADS |