Chiral perturbation theory for vector mesons

Journal Article · Mon Sep 18 00:00:00 EDT 1995 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.75.2272· OSTI ID:239428

Jenkins, E; Manohar, A V ^[1]; Wise, M B ^[2]

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1. Department of Physics, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093-0319 (United States)
2. California Institute of Technology, Pasadena, California 91125 (United States)

We derive a heavy vector-meson chiral Lagrangian in which the vector mesons are treated as heavy static matter fields. The unknown couplings of the chiral Lagrangian are further related using the 1/{ital N}{sub {ital c}} expansion. Chiral perturbation theory is applied to the vector-meson mass matrix. At one loop there are large corrections to the individual vector-meson masses, but the singlet-octet mixing angle remains almost unchanged. The parity-violating {ital s}-wave {phi}{r_arrow}{rho}{pi} weak decay amplitude is derived in the combined chiral and large {ital N}{sub {ital c}} limits. Rare {phi} decays provide a sensitive test of nonleptonic neutral current structure.

• Research Organization: University of California
• DOE Contract Number: FG03-90ER40546; FG03-92ER40701
• OSTI ID: 239428
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 12 Vol. 75; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CHIRAL SYMMETRY
CORRECTIONS
COUPLING
DECAY AMPLITUDES
EXPANSION
LAGRANGIAN FUNCTION
MATTER
MIXING
NEUTRAL-CURRENT INTERACTIONS
PARITY
PERTURBATION THEORY
S WAVES
VECTOR MESONS
VIOLATIONS