Quark momentum distribution of hadronic matter in a simple confining quark model

Journal Article · Wed Mar 01 04:00:00 EST 1989 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.39.1413· OSTI ID:6436292

Lissia, M; Negele, J W

Exact calculation of the quark momentum distribution of a one-dimensional confining quark model of hadronic matter and comparison with approximations based on an effective hadronic theory provide an instructive, controlled test of the approximations commonly used in describing quark degrees of freedom in nuclei. The hadron-hadron correlation function in the effective theory when corrected for quark antisymmetry agrees well with that in the exact ground state. The package or convolution approximation, which approximates the quark wave function by the product of the many-hadron wave function multiplied by the ground-state wave function for the quarks in each hadron, is shown to produce a poor description of the quark momentum distribution and appropriate antisymmetrization of this product is shown to yield an excellent approximation at densities relevant to nuclear matter.

• Research Organization: Center for Theoretical Physics, Laboratory for Nuclear Science dge, Massachusetts 02139
• OSTI ID: 6436292
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 39:5; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645204* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions & Properties
645400 -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COMPOSITE MODELS
CORRELATION FUNCTIONS
DEGREES OF FREEDOM
ELEMENTARY PARTICLES
FIELD THEORIES
FUNCTIONS
GLUONS
HADRONS
MATHEMATICAL MODELS
MATTER
NUCLEAR MATTER
PARTICLE MODELS
POSTULATED PARTICLES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
QUARKS
WAVE FUNCTIONS