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Journal ArticleDOI

Radiative decays and SU(3) flavour structure of iota (1460)

02 Oct 1986-Physics Letters B (North-Holland)-Vol. 178, pp 305-307
TL;DR: In this article, it was pointed out that given the present limit on Γ ( ω → ιγ ), such a possibility appears unlikely, and it was shown that Γ(ω → ϕγ) appears unlikely.
About: This article is published in Physics Letters B.The article was published on 1986-10-02. It has received 2 citations till now.
Citations
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Journal ArticleDOI
TL;DR: In this article, the SU(3) flavour structure of ι(1460) is exploited to seek consistency between vector meson dominance and anomalous Ward identities, and it is shown that a minimum of 10 to 20% breaking in nonet symmetry is necessary to get an overall fit with the radiative rates of low-lying η and η′.
Abstract: TheSU(3) flavour structure of ι(1460) is exploited to seek consistency between vector meson dominance and anomalous Ward identities. Our analysis shows that a minimum of 10 to 20% breaking in nonet symmetry is necessary to get an overall fit with the radiative rates of low-lying η and η′.

3 citations

References
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Journal ArticleDOI
TL;DR: In this article, the authors used radiative transitions involving neutral mesons with J/sup P/ = 0/sup -/ (eta,eta,iota(1440)) and 2/sup +/ (f,f,theta(1640)) to provide information on the light-quark content of these mesons, and to test predictions of models in which these states are quarkonium-gluonium mixtures.
Abstract: Radiative transitions involving neutral mesons with J/sup P/ = 0/sup -/ (eta,eta',iota(1440)) and 2/sup +/ (f,f',theta(1640)) are used to provide information on the light-quark content of these mesons, and to test predictions of models in which these states are quarkonium-gluonium mixtures. Some suggested observations include (l) phi..-->..eta'..gamma.., predicted to have a branching ratio of 7 x 10/sup -5/ in the standard quarkonium picture of eta', (2) f'..--> gamma gamma.., predicted to have a partial width > or approx. =200 eV if f' = ss-bar but very sensitive to possible destructive interference from small nonstrange-quark admixtures, and (3) iota(1440)..--> gamma gamma.. and theta(1640)..--> gamma gamma.., which will be easily detectable unless these states are almost totally free of quarkonium admixtures.

101 citations

Journal ArticleDOI
TL;DR: In this paper, the relationships between the iota(1460) partial widths to γγ, ργ and ωγ were derived and the SU(3) flavor structure of iota decays.

10 citations

Journal ArticleDOI
TL;DR: Gluon admixtures in neutral pseudoscalar mesons are considered to test the quark-line rule for the reactions pi p to eta Delta, eta n, pp to pi pi eta, etc as mentioned in this paper.
Abstract: Gluon admixtures in neutral pseudoscalar mesons are considered to test the quark-line rule for the reactions pi p to eta Delta , eta n, pp to pi pi eta , etc. It is found that the experimental data on these reactions support the possibility of a small gluonium admixture in the eta and eta ' states. The results have also been used to predict some electromagnetic decay rates of the pseudoscalar glueball states l(1440) along with those of eta and eta '.

4 citations