Diquark abundance in stellar matter

Journal Article · Sun Nov 15 00:00:00 EST 1992 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.46.4754· OSTI ID:7200496

Horvath, J E; de Freitas Pacheco, J A; de Araujo, J C.N. ^[1]

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1. Instituto Astronomico e Geofisico, Universidade de Sao Paulo, Avenida M. Stefano 4200, Agua Funda, 04301 Sao Paulo, Sao Paulo (Brazil)

The clustering of quarks into pairs (diquarks) has been suggested recently to play an important role in dense matter and its astrophysical realization in neutron-star cores. We address in this work the features of diquark matter by employing an accurate equation of state valid for the effective {lambda}{phi}{sup 4} diquark theory, and find milder (although non-negligible) effects than in previous calculations. Some considerations on the very presence of a diquark-dominated region immediately above the deconfinement density are also given.

• OSTI ID: 7200496
• Journal Information: Physical Review, D (Particles Fields); (United States), Vol. 46:10; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
NEUTRON STARS
QUARK MATTER
PHI4-FIELD THEORY
ABUNDANCE
ASTROPHYSICS
BOSONS
CLUSTER MODEL
COLOR MODEL
COUPLING CONSTANTS
ENERGY DENSITY
EQUATIONS OF STATE
ISOSPIN
J-J COUPLING
MASS DIFFERENCE
QUARKS
SPIN
SU-3 GROUPS
THERMODYNAMIC PROPERTIES
ANGULAR MOMENTUM
COMPOSITE MODELS
COUPLING
ELEMENTARY PARTICLES
EQUATIONS
FERMIONS
FIELD THEORIES
INTERMEDIATE COUPLING
LIE GROUPS
MATHEMATICAL MODELS
MATTER
NUCLEAR MODELS
PARTICLE MODELS
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
POSTULATED PARTICLES
QUANTUM FIELD THEORY
QUARK MODEL
STARS
SU GROUPS
SYMMETRY GROUPS
662110* - General Theory of Particles & Fields- Theory of Fields & Strings- (1992-)
662120 - General Theory of Particles & Fields- Symmetry
Conservation Laws
Currents & Their Properties- (1992-)
662440 - Properties of Other Particles Including Hypothetical Particles- (1992-)