Nambu--Jona-Lasinio--type effective Lagrangian: Anomalies and nonlinear Lagrangian of low-energy, large-N QCD

Journal Article · Sat Jun 15 04:00:00 EDT 1985 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.31.3256· OSTI ID:5770531

Dhar, A; Shankar, R; Wadia, S R

We present a qualitative derivation of the chiral model from QCD. This is based on using a Nambu--Jona-Lasinio--type effective Lagrangian as an intermediate step. A detailed derivation of the anomalous low-energy Wess-Zumino term is presented. This includes vector, axial-vector, and pseudoscalar particles. The low-energy scale is set by H-barapprox.. We also present the low-energy nonlinear chiral model which generalizes the Skyrme model. The possibility of soliton solutions is indicated. There is a possible application of these ideas to electroweak theory.

• Research Organization: Tata Institute of Fundamental Research, Homi Bhabha Road, Bombay 400005, India
• OSTI ID: 5770531
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 31:12; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645400* -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRAL SYMMETRY
FIELD THEORIES
FUNCTIONS
LAGRANGIAN FUNCTION
MATHEMATICAL MODELS
PARTICLE MODELS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUASI PARTICLES
RENORMALIZATION
SCALAR FIELDS
SIGMA MODEL
SOLITONS
SPACE-TIME
SYMMETRY
SYMMETRY BREAKING
VECTOR FIELDS