Effective chiral Lagrangian of pseudoscalar and vector mesons

Journal Article · Sat Oct 31 23:00:00 EST 1987 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.36.2768· OSTI ID:5961112

Fayyazuddin,; Riazuddin,

We extend Weinberg's formulation of the Lagrangian involving pions and rho mesons to include electromagnetism. We also extend this approach to SU(3). We obtain the results: g/sub rho/ = (m/sub rho//sup 2//g) = 2g/sub rho//sub ..pi..//sub ..pi../f/sub ..pi..//sup 2/, g/sub rho//sub ..pi..//sub ..pi../ = g = m/sub rho//..sqrt..2-barf..pi.., and decay widths for K/sup */..-->..K..pi.. and phi = KK-bar as well as leptonic widths of rho, ..omega.., and phi mesons and charge mean-square radius for K/sup +/ or K/sup -/ meson in mass-mixing and current-mixing models of SU(3) symmetry breaking. These results agree reasonably well with their experimental values and require f/sub K//f/sub ..pi../>1 (1.1--1.3). We compare this formulation with the conventional formulation of the effective chiral Lagrangian involving rho and A/sub 1/ mesons.

• Research Organization: Department of Physics, Umal-Qura University, Makkah Al-Mukarramah, Saudi Arabia
• OSTI ID: 5961112
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 36:9; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645300* -- High Energy Physics-- Particle Invariance Principles & Symmetries
645400 -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
CHIRAL SYMMETRY
DECAY
ELECTROMAGNETISM
ELEMENTARY PARTICLES
FUNCTIONS
HADRONS
ISOSPIN
KAONS
KAONS PLUS
LAGRANGIAN FUNCTION
LIE GROUPS
MAGNETISM
MATHEMATICAL MODELS
MESONS
PARTICLE MODELS
PARTICLE PROPERTIES
PIONS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUARKS
SCALAR FIELDS
SIGMA MODEL
STRANGE MESONS
STRANGE PARTICLES
SU GROUPS
SU-2 GROUPS
SU-3 GROUPS
SYMMETRY
SYMMETRY BREAKING
SYMMETRY GROUPS
VECTOR MESONS