Published January 1978 | Version v1
Report Restricted

A polarisation prediction from two gluon exchange for 1--(Q anti Q) → γ + 2++(q anti q)

Creators

Description

An exclusive Zweig suppressed radiative decay of heavy 1-- vector mesons is considered in the approximation 3S1(Q anti Q) → γ + [g + g →] 3P2(q anti q) with on-shell gluons. The 2++ meson will appear to be in the helicity zero state if the mass ratio M2++/m1-- is small. A comparison with the decays J/PSI(3.1), PSI'(3.7), U(9.4),.. → γ + f(1.3), f'(1.5),.... is suggested. (orig.)

Availability note (English)

MF available from INIS under the Report Number.

Abstract (German)

In der Naeherung 3S1(Q anti Q) → γ + [g + g →] 3P2(q anti q) mit Schalengluonen wird ein exclusiver Zweig - unterdrueckter Strahlungszerfall von schweren 1-- Vektormesonen betrachtet. Das 2++ Meson wird im Nullzustand der Helizitaet auftreten, wenn das Massenverhaeltnis M2++/M1-- klein ist. Es wird ein Vergleich mit den Zerfaellen J/PSI(3,1), PSI'(3,7), U(9,4),.. → γ + f(1,3), f'(1,5),.... angeregt. (orig.)

Files

Restricted

The record is publicly accessible, but files are restricted to users with access.

Additional details

Publishing Information

Imprint Pagination
4 p.
Report number
DESY--78/06

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
9393770
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
ANGULAR DISTRIBUTION; ELECTROMAGNETIC PARTICLE DECAY; ELECTRON-POSITRON INTERACTIONS; F-1260 RESONANCES; F-1514 RESONANCES; GEV RANGE 01-10; GLUON MODEL; HELICITY; PHOTONS; POLARIZED PRODUCTS; PSI-3105 RESONANCES; PSI-3695 RESONANCES; TENSOR MESONS; UPSILON RESONANCES; VECTOR MESONS
Descriptors DEC
BOSONS; DECAY; DISTRIBUTION; ELEMENTARY PARTICLES; ENERGY RANGE; GEV RANGE; HADRONS; INTERACTIONS; LEPTON-LEPTON INTERACTIONS; MASSLESS PARTICLES; MATHEMATICAL MODELS; MESON RESONANCES; MESONS; PARTICLE DECAY; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PROPERTIES; PSI RESONANCES; RESONANCE PARTICLES

Optional Information

Notes
1 fig.; 13 refs.