EPJ

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EPJ C - Particles and Fields
Particles and Fields
Eur. Phys. J. C16, 435-444
DOI 10.1007/s100520000408

Measurement of $K^*\bar{K}^*$ production in two-photon interactions

The ARGUS Collaboration

H. Albrecht - et al.

DESY, Hamburg, Germany

Received: 17 December 1999 / Published online: 8 June 2000 - © Springer-Verlag 2000

Abstract
A measurement of gamma-gamma production of the final states $K^+ K^- \pi^+ \pi ^-$, $K^+ K^- \pi^0 \pi ^0$, $K^0_SK^0_S\pi^+\pi^-$, $K^0_S K^{\pm} \pi^{\mp} \pi^0$ and $K^0_SK^0_S\pi^0\pi^0$ was performed by the ARGUS collaboration at the e+e- storage ring DORIS II at DESY. Since the two intermediate states $K^{*0} \bar{K}^{*0}$ and K*+K*- are accessible by analysing different final states, the measurement provides several cross checks for cross-sections to these two states. The results for $\gamma\gamma \to K^{*}\bar{K}^*$ cross-sections obtained from different final states are found to be consistent with each other. The analysis of the partial wave structure of the $K^{*0} \bar{K}^{*0}$ state from the reaction $\gamma \gamma \to K^+ K^- \pi^+ \pi ^-$ revealed the dominance of the $(J^P,J_z) = (2^+,\pm 2)$ wave.

Copyright Società Italiana di Fisica, Springer-Verlag 2000

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