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Decay of an exotic qq-barg hybrid meson

Journal Article · · Phys. Rev. D; (United States)
We study decay modes and decay widths of an exotic qq-barg(1/sup - +/) meson. Three possible decay mechanisms: the process allowed by the Okubo-Zweig-Iizuka (OZI) rule, the qq-barg-qq-bar mixing process and the OZI-rule-semiforbidden process: are investigated. Principal decay modes of the qq-barg(1/sup - +/,I = 1,(1/2)) into ordinary mesons are expected to be qq-barg(1/sup - +/,I = 1)..--> pi..eta and qq-barg(1/sup - +/,I = (1/2))..--> pi..K. These decay widths are predicted to be approx.50 MeV. For the qq-barg(1/sup - +/,I = 0) meson, the main decay mode into ordinary mesons depends on its mass. For m/sub q/q-barg< or approx. =1300 MeV, this meson decays mainly into ..pi pi..rho (GAMMA<1 MeV), but if m/sub q/q-barg> or approx. =1500 MeV, it decays into etaeta', KK*, and ..pi..A/sub 1/ (GAMMA> or approx. =10 MeV). We also expect OZI-rule-allowed processes such as qq-barg(1/sup - +/)..--> pi..qq-barg(0/sup - +/). This decay width is predicted to be approx.20 MeV.
Research Organization:
Department of Theoretical Physics, University of Bielefeld, D-4800 Bielefeld 1, Federal Republic of Germany
OSTI ID:
5908034
Journal Information:
Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 27:11; ISSN PRVDA
Country of Publication:
United States
Language:
English

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Related Subjects

645205* -- High Energy Physics-- Particle Interactions &amp; Properties-Theoretical-- Strong Interactions
Baryon No. = 0-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
COLOR MODEL
COMPOSITE MODELS
DECAY
ELEMENTARY PARTICLES
FIELD THEORIES
GLUONS
HADRONIC PARTICLE DECAY
HADRONS
MASS
MATHEMATICAL MODELS
MESON RESONANCES
MESONS
PARTICLE DECAY
PARTICLE MODELS
PARTICLE PROPERTIES
PARTICLE WIDTHS
PIONS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
QUARKS
RESONANCE PARTICLES