Breakdown of nonet symmetry in Cabibbo-allowed decays of charmed mesons into two pseudoscalars

Journal Article · Mon Jan 01 04:00:00 EST 1990 · Physical Review, D (Particles Fields); (USA)

DOI:https://doi.org/10.1103/PhysRevD.41.303· OSTI ID:7162145

Rosen, S P ^[1]

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1. T-Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (US)

We assume the flavor-symmetry properties predicted by the standard model for the decays of charmed mesons into two pseudoscalar mesons and test the additional hypothesis of nonet symmetry. From the measured branching ratios for {ital D}{sup +} and {ital D}{sup 0}, we show that nonet symmetry must be badly broken for the pseudoscalar nonet. Because the branching ratios for the {ital D}{sub {ital s}} meson are not well known at present, we cannot determine whether one of the SU(3) representations {bold 6}{sup *} and 1{bold 5} dominates the effective interaction. There are some indications that both are equally important.

• OSTI ID: 7162145
• Journal Information: Physical Review, D (Particles Fields); (USA), Journal Name: Physical Review, D (Particles Fields); (USA) Vol. 41:1; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

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645300* -- High Energy Physics-- Particle Invariance Principles & Symmetries
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
BOSONS
BRANCHING RATIO
CABIBBO ANGLE
CHARM PARTICLES
CHARMED MESONS
COMPOSITE MODELS
D MESONS
D NEUTRAL MESONS
D PLUS MESONS
D S MESONS
DECAY
DECAY AMPLITUDES
ELEMENTARY PARTICLES
ETA PRIME-958 MESONS
FLAVOR MODEL
HADRONS
LIE GROUPS
MATHEMATICAL MODELS
MESONS
MULTIPLETS
PARTICLE MODELS
PSEUDOSCALAR MESONS
PSEUDOSCALARS
QUARK MODEL
STANDARD MODEL
SU GROUPS
SU-3 GROUPS
SYMMETRY
SYMMETRY BREAKING
SYMMETRY GROUPS
TRANSITION AMPLITUDES
UNIFIED GAUGE MODELS
UNITARY SYMMETRY