Lambda and Sigma0 Pair Production in Two-Photon Collisions at LEP

Details Lambda and Sigma0 Pair Production in Two-Photon Collisions at LEP Lambda and Sigma0 Pair Production in Two-Photon Collisions at LEP

2002-04-19

arxiv.org/abs/hep-ex/0204025v1

Phys.Lett.B536:24-33,2002

Physics

High Energy Physics

High Energy Physics - Experiment

Scientific paper

10.1016/S0370-2693(02)01781-1

Strange baryon pair production in two-photon collisions is studied with the L3 detector at LEP. The analysis is based on data collected at e+e- centre-of-mass energies from 91 GeV to 208 GeV, corresponding to an integrated luminosity of 844 pb-1. The processes gamma gamma -> Lambda Anti-lambda and gamma gamma -> Sigma0 Anti-sigma0 are identified. Their cross sections as a function of the gamma gamma centre-of-mass energy are measured and results are compared to predictions of the quark-diquark model.

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