XI(2220) REEXAMINED - STRONG DECAYS OF THE 1-F-3(2) AND 1-F-3(4) S(S)OVER-BAR MESONS

Citation
Hg. Blundell et S. Godfrey, XI(2220) REEXAMINED - STRONG DECAYS OF THE 1-F-3(2) AND 1-F-3(4) S(S)OVER-BAR MESONS, Physical review. D. Particles and fields, 53(7), 1996, pp. 3700-3711
Citations number
40
Categorie Soggetti
Physics, Particles & Fields
ISSN journal
05562821
Volume
53
Issue
7
Year of publication
1996
Pages
3700 - 3711
Database
ISI
SICI code
0556-2821(1996)53:7<3700:XR-SDO>2.0.ZU;2-Z
Abstract
We calculate the decay widths of the 1 F-3(2) and 1 F-3(4) <s(s)over b ar> mesons and compare them to the measured properties of the xi(2220) [now known as the f(4)(2220)]. Including previously neglected decay m odes we find that the width of the F-3(2) state <s(s)over bar> meson i s much larger than previously believed, making this explanation unlike ly. On the other hand the predicted width of the F-3(4) state, althoug h broader than the observed width, is consistent within the uncertaint ies of the model. This interpretation predicts large partial widths to KK(892) and K*(892)K*(892) final states which should be looked for. A second possibility that would account for the different properties o f the xi(2220) seen in different experiments is that two hadronic stat es exist at this mass. The first would be a broader F-3(4) <s(s)over b ar> State which is seen in hadron beam experiments while the second wo uld be a narrow state with high glue content seen in the gluon rich J/ psi, radiative decay. Further experimental results are needed to sort this out.