Diquarks in the Nambu--Jona-Lasinio model

Journal Article · Fri Jun 01 00:00:00 EDT 1990 · Physical Review, D (Particles Fields); (USA)

DOI:https://doi.org/10.1103/PhysRevD.41.3442· OSTI ID:7097515

Thorsson, V; Zahed, I ^[1]

---

1. Department of Physics, State University of New York at Stony Brook, Stony Brook, New York 11794 (USA)

We investigate the possibility of binding locally two quarks in the Nambu--Jona-Lasinio model. For a range of model parameters consistent with vacuum parameters the scalar, isoscalar, and color-antitriplet diquark is found to bind with a mass of about the constituent-quark mass. The relevance of this light diquark for baryons in the Nambu--Jona-Lasinio model is discussed.

• DOE Contract Number: FG02-88ER40388
• OSTI ID: 7097515
• Journal Information: Physical Review, D (Particles Fields); (USA), Journal Name: Physical Review, D (Particles Fields); (USA) Vol. 41:11; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

645204* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
BOUND STATE
CHIRAL SYMMETRY
COLOR MODEL
COMPOSITE MODELS
ELEMENTARY PARTICLES
EUCLIDEAN SPACE
FERMIONS
FIELD THEORIES
FUNCTIONS
GLUONS
HARTREE-FOCK METHOD
LIE GROUPS
MASS
MATHEMATICAL MODELS
MATHEMATICAL SPACE
PARTICLE MODELS
POSTULATED PARTICLES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
QUARKS
RIEMANN SPACE
SPACE
STRUCTURE FUNCTIONS
SU GROUPS
SU-2 GROUPS
SU-3 GROUPS
SYMMETRY
SYMMETRY BREAKING
SYMMETRY GROUPS
VACUUM STATES