On the exotic nature of the scalar G(1590) resonance

Journal Article · Sat Nov 01 04:00:00 EST 1986 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:6649182

Achasov, N N; Gershtei-breven, S S

We interpret the scalar G(1590) meson, discovered at the Institute of High Energy Physics at Serpukhov, as a state which is similar to the eighth component of an SU(3)/sub f/ octet. This assumption explains very naturally both the suppression of the decays G..--> pi pi.. and G..-->..KK-bar, and the absence of a copious J/psi..--> gamma..G..--> gamma..etaeta decay. We describe in detail the properties of the members of the octet which are as yet undiscovered. We point out that they should be searched for in the ..pi..eta' and K(K-bar)eta' mass spectra, for instance, in the reactions ..pi../sup -/p..--> pi..eta'N and K/sup -/p..-->..K-bareta'N. We show that the hypothetical octet cannot be a qq-bar state. We give reasons for it being of a hybrid gqq-bar nature.

• Research Organization: Institute of Mathematics, Siberian Division, USSR Academy of Sciences
• OSTI ID: 6649182
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 44:5; ISSN SJNCA
• Country of Publication: United States
• Language: English

Related Subjects

645204* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
DECAY
ELEMENTARY PARTICLES
HADRONIC PARTICLE DECAY
HADRONS
LIE GROUPS
MESON OCTETS
MESON RESONANCES
MULTIPLETS
PARTICLE DECAY
PARTICLE IDENTIFICATION
PARTICLE MULTIPLETS
POSTULATED PARTICLES
QUANTUM NUMBERS
RESONANCE PARTICLES
SU GROUPS
SU-3 GROUPS
SYMMETRY GROUPS