Evidence for a spin-1 resonance in the reaction γγ*→ $K^{0}$ $K^{\pm}$ $π^{\pm}$

Publisher Website

2 November 1987

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 59 (18), 2016-2019
https://doi.org/10.1103/physrevlett.59.2016

Abstract

We confirm the observation of a spin-1 resonance at 1423 MeV in the

K_{S}^{0}

K^{\pm}

π^{\mp}

system produced in single-tagged two-photon interactions. The Dalitz plot indicates that this resonance decays primarily via a

K^{*}

K intermediate state. We measure a radiative width times branching ratio

B_{KK ¯ π}

(

M^{2}

/

Q^{2}

)

Γ_{γ γ *}

=3.2±1.4±0.6 keV on the assumption of a ρ-pole form factor.

Keywords

This publication has 13 references indexed in Scilit:

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Physical Review Letters, 1987
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