{xi}(2220) reexamined: Strong decays of the 1{sup 3}{ital F}{sub 2} and 1{sup 3}{ital F}{sub 4} {bar {ital ss}} mesons
- Ottawa-Carleton Institute for Physics, Department of Physics, Carleton University, Ottawa, K1S 5B6 (CANADA)
We calculate the decay widths of the 1{sup 3}{ital F}{sub 2} and 1{sup 3}{ital F}{sub 4} {ital s{bar s}} mesons and compare them to the measured properties of the {xi}(2220) [now known as the {ital f}{sub 4}(2220)]. Including previously neglected decay modes we find that the width of the {sup 3}{ital F}{sub 2} state {ital s{bar s}} meson is much larger than previously believed, making this explanation unlikely. On the other hand the predicted width of the {sup 3}{ital F}{sub 4} state, although broader than the observed width, is consistent within the uncertainties of the model. This interpretation predicts large partial widths to {ital KK{sup {asterisk}}}(892) and {ital K}{sup {asterisk}}(892){ital K}{sup {asterisk}}(892) final states which should be looked for. A second possibility that would account for the different properties of the {xi}(2220) seen in different experiments is that two hadronic states exist at this mass. The first would be a broader {sup 3}{ital F}{sub 4} {ital s{bar s}} state which is seen in hadron beam experiments while the second would be a narrow state with high glue content seen in the gluon rich {ital J}/{psi} radiative decay. Further experimental results are needed to sort this out. {copyright} {ital 1996 The American Physical Society.}
- OSTI ID:
- 279836
- Journal Information:
- Physical Review, D, Journal Name: Physical Review, D Journal Issue: 7 Vol. 53; ISSN 0556-2821; ISSN PRVDAQ
- Country of Publication:
- United States
- Language:
- English
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