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Study Of Resonance Formation In The Mass Region 1400- 1500 Mev Through The Reaction Γγ→K0 Sk±Π ∓, P. Archard, Gyöngyi Baksay, László A. Baksay, Klaus Dehmelt, Marcus Hohlmann, S. Rembeczki, Zolton Szillási, Igor Vodopiyanov, The L3 Collaboration
Study Of Resonance Formation In The Mass Region 1400- 1500 Mev Through The Reaction Γγ→K0 Sk±Π ∓, P. Archard, Gyöngyi Baksay, László A. Baksay, Klaus Dehmelt, Marcus Hohlmann, S. Rembeczki, Zolton Szillási, Igor Vodopiyanov, The L3 Collaboration
Aerospace, Physics, and Space Science Faculty Publications
The K0 SK±π∓ final state in two-photon collisions is studied with the L3 detector at LEP at e+e- centre-of-mass energies from 183 to 209 GeV with an integrated luminosity of 664.6 pb-1. The η(1475) and f 1(1420) mesons are observed and their contribution is separated by measuring the formation rates as a function of the photon virtuality Q 2. The η(1475) is found to be dominant for Q2 0.01GeV2 and its two-photon width is measured to be 0.23±0.05 (stat.) ±0.05 (sys.) keV. At higher Q2, the f 1(1420) is formed and decays to K*(892)K. The γγ coupling and form factor …