Measurement of K^+K^- production in two-photon collisions in the resonant-mass region

Details Measurement of K^+K^- production in two-photon collisions in the resonant-mass region Measurement of K^+K^- production in two-photon collisions in the resonant-mass region

2003-09-29

arxiv.org/abs/hep-ex/0309077v2

Eur.Phys.J.C32:323-336,2003

Physics

High Energy Physics

High Energy Physics - Experiment

24 pages, 8 figures, to appear in Euro. Phys. Jour. C

Scientific paper

10.1140/epjc/s2003-01468-9

K^+K^- production in two-photon collisions has been studied using a large data sample of 67 fb^{-1} accumulated with the Belle detector at the KEKB asymmetric e^+e^- collider. We have measured the cross section for the process gamma gamma -> K^+ K^- for center-of-mass energies between 1.4 and 2.4 GeV, and found three new resonant structures in the energy region between 1.6 and 2.4 GeV. The angular differential cross sections have also been measured.

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