Strange matter lumps in the early Universe

Journal Article · Sat Oct 15 04:00:00 EDT 1994 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.50.4771· OSTI ID:7006484

Cho, S J ^[1]; Lee, K S ^[2]; Heinz, U ^[3]

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1. Department of Physics, Chonnam National University, Yong-Bong Dong, Kwangju 500-757 (Korea, Republic of)
2. Institut fuer Theoretische Physik, Universitaet Regensburg, D-93040 Regensburg (Germany)
3. Institute for Theoretical Physics, University of California, Santa Barbara, California 93106-4030 (United States)

We study the stability of hot strange matter lumps formed in the early Universe. As the Universe cools below the hadronization temperature, these lumps normally become unstable against boiling. They can stabilize themselves against this process if their mass is sufficiently large to hold a hadronic crust by gravitational attraction. Our analysis improves on previous studies of the internal structure of such stable hot quark matter lumps with hadronic crust by correctly treating the constraints from chemical equilibrium of baryonic and electric charge between crust and core. Since the expansion rate of the early Universe is much faster than the cooling rate of the strange matter lumps, their internal structure is characterized by constant entropy per baryon. Our improved analysis confirms the earlier finding that such stable quark matter lumps require a mass well above the total mass inside the horizon.

• OSTI ID: 7006484
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 50:8; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662230* -- Quantum Chromodynamics-- (1992-)
663110 -- General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ELECTRIC CHARGES
ENTROPY
FIELD THEORIES
MASS
MATTER
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MATTER
STABILITY
STRANGENESS
THERMODYNAMIC PROPERTIES