Determination of the chiral SU(4) x SU(4) breaking parameters
Broken chiral SU(4) x SU(4) symmetry: from the observed mass spectrum of pseudoscalar charmed mesons the symmetry breakig parameters of the theory could be solved. It is found that both vacuum and Hamiltonian breaking play an important role as far as charmed states are concerned. Purely from the masses of D and F mesons the current algebra mass ratio m/sub c//m/sub s/ < 5 is deduced. This differs greatly from values obtained using linear or quadratic mass formulas. Considering eta, eta', and eta/sub c/ mixing a good solution with m/sub c//m/sub s/ approx. 3.2 and (anti cc)/anti uu) approx. 5.67 is further obtained. 18 references
- Research Organization:
- Oregon Univ., Eugene (USA). Inst. of Theoretical Science
- OSTI ID:
- 6195404
- Report Number(s):
- DOE/ER/70004-216; RLO-2230/T4-216
- Country of Publication:
- United States
- Language:
- English
Similar Records
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Related Subjects
645301* -- High Energy Physics-- Particle Invariance Principles & Symmetries-- General-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
CHARM PARTICLES
CHARMED MESON RESONANCES
CONFIGURATION MIXING
D RESONANCES
ELEMENTARY PARTICLES
ETA MESONS
F-1260 RESONANCES
HADRONS
HAMILTONIANS
INTERACTIONS
LIE GROUPS
MASS
MASS SPECTRA
MATHEMATICAL OPERATORS
MESON RESONANCES
MESONS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUANTUM OPERATORS
RESONANCE PARTICLES
SPECTRA
SU GROUPS
SU-4 GROUPS
SYMMETRY BREAKING
SYMMETRY GROUPS
TENSOR MESONS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
CHARM PARTICLES
CHARMED MESON RESONANCES
CONFIGURATION MIXING
D RESONANCES
ELEMENTARY PARTICLES
ETA MESONS
F-1260 RESONANCES
HADRONS
HAMILTONIANS
INTERACTIONS
LIE GROUPS
MASS
MASS SPECTRA
MATHEMATICAL OPERATORS
MESON RESONANCES
MESONS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUANTUM OPERATORS
RESONANCE PARTICLES
SPECTRA
SU GROUPS
SU-4 GROUPS
SYMMETRY BREAKING
SYMMETRY GROUPS
TENSOR MESONS