Abstract
We have searched for resonance production in the reaction γγ→Ks 0Kπ. No signal was found for the ηc and an upper limit for the radiative with {Mathematical expression} keV (95% c.l.) is obtained. For the glueball candidate η(1440) (previously i) the upper limit {Mathematical expression} is derived. In the tagged data sample resonance formation of a spin 1 state at 1420 MeV is observed, which is absent in the untagged data. The mass and width of this state are consistent with those of the f1(1420); an analysis of decay angular distributions favours positive parity.
Original language | English |
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Pages (from-to) | 367-376 |
Number of pages | 10 |
Journal | European Physical Journal C |
Volume | 42 |
Issue number | 3 |
DOIs | |
State | Published - Sep 1989 |