Searches for rare decays of eta and eta' mesons and for light Higgs particles

Journal Article · Mon Jun 01 04:00:00 EDT 1981 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:5670840

Viktorov, V A; Golovkin, S V; Dzhelyadin, R I; Zaitsev, A M; Konstantinov, A S; Konstantinov, V F; Kubarovskii, V P; Landsberg, L G; Mukhin, V A; Obraztsov, V F; Prokoshkin, Y D

Upper limits are estimated for the relative probabilities of rare decays of eta and eta' mesons: BR(eta..--> pi../sup 0/..mu../sup +/..mu../sup -/)<6 x 10/sup -6/, BR(eta'..--> pi../sup 0/..mu../sup +/..mu../sup -/)<7 x 10/sup -5/, BR(eta'..-->..eta..mu../sup +/..mu../sup -/) <1.5 x 10/sup -5/, and BR(eta..--> pi../sup 0/..mu../sup +/..mu../sup -/..gamma..)<3 x 10/sup -6/ (90% confidence level). These are several orders of magnitude lower than the limits obtained earlier. The existence of light Higgs particles with mass less than 409 MeV has been excluded on the basis of analysis of the decay eta'..-->..eta..mu.. /sup +/..mu../sup -/.

• Research Organization: Inst. for High Energy Physics, Serpukhov
• OSTI ID: 5670840
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 33:6; ISSN SJNCA
• Country of Publication: United States
• Language: English

Related Subjects

645102* -- High Energy Physics-- Particle Interactions &amp; Properties-Experimental-- Weak Interactions &amp; Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
BRANCHING RATIO
DECAY
ELEMENTARY PARTICLES
ETA MESONS
ETA-958 RESONANCES
FERMIONS
HADRONS
HIGGS BOSONS
INTERMEDIATE BOSONS
LEPTONS
MATHEMATICAL MODELS
MESON RESONANCES
MESONS
MUONS
PARTICLE DECAY
PARTICLE MODELS
PIONS
PIONS NEUTRAL
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
RESONANCE PARTICLES
SEMILEPTONIC DECAY
VECTOR DOMINANCE MODEL
WEAK PARTICLE DECAY