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Title: Cosmic separation of phases

Abstract

A first-order QCD phase transition that occurred reversibly in the early universe would lead to a surprisingly rich cosmological scenario. Although observable consequences would not necessarily survive, it is at least conceivable that the phase transition would concentrate most of the quark excess in dense, invisible quark nuggets, providing an explanation for the dark matter in terms of QCD effects only. This possibility is viable only if quark matter has energy per baryon less than 938 MeV. Two related issues are considered in appendices: the possibility that neutron stars generate a quark-matter component of cosmic rays, and the possibility that the QCD phase transition may have produced a detectable gravitational signal.

Authors:
Publication Date:
Research Org.:
Institute for Advanced Study, Princeton, New Jersey 08540
OSTI Identifier:
6658823
Alternate Identifier(s):
OSTI ID: 6658823
DOE Contract Number:  
AC02-76ER02220
Resource Type:
Journal Article
Journal Name:
Phys. Rev. D; (United States)
Additional Journal Information:
Journal Volume: 30:2
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COSMOLOGY; QUARK MATTER; QUANTUM CHROMODYNAMICS; PHASE TRANSFORMATIONS; BARYONS; CHIRAL SYMMETRY; COSMIC RADIATION; GRAVITATIONAL FIELDS; NEUTRON STARS; SYMMETRY BREAKING; UNIVERSE; ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; HADRONS; IONIZING RADIATIONS; MATTER; QUANTUM FIELD THEORY; RADIATIONS; STARS; SYMMETRY 645400* -- High Energy Physics-- Field Theory; 640102 -- Astrophysics & Cosmology-- Stars & Quasi-Stellar, Radio & X-Ray Sources; 640106 -- Astrophysics & Cosmology-- Cosmology

Citation Formats

Witten, E. Cosmic separation of phases. United States: N. p., 1984. Web. doi:10.1103/PhysRevD.30.272.
Witten, E. Cosmic separation of phases. United States. doi:10.1103/PhysRevD.30.272.
Witten, E. Sun . "Cosmic separation of phases". United States. doi:10.1103/PhysRevD.30.272.
@article{osti_6658823,
title = {Cosmic separation of phases},
author = {Witten, E.},
abstractNote = {A first-order QCD phase transition that occurred reversibly in the early universe would lead to a surprisingly rich cosmological scenario. Although observable consequences would not necessarily survive, it is at least conceivable that the phase transition would concentrate most of the quark excess in dense, invisible quark nuggets, providing an explanation for the dark matter in terms of QCD effects only. This possibility is viable only if quark matter has energy per baryon less than 938 MeV. Two related issues are considered in appendices: the possibility that neutron stars generate a quark-matter component of cosmic rays, and the possibility that the QCD phase transition may have produced a detectable gravitational signal.},
doi = {10.1103/PhysRevD.30.272},
journal = {Phys. Rev. D; (United States)},
number = ,
volume = 30:2,
place = {United States},
year = {1984},
month = {7}
}