Lambda and Sigma0 Pair Production in Two-Photon Collisions at LEP
L3 Collaborations
TL;DR
This paper reports on the measurement of strange baryon pair production in two-photon collisions at LEP, analyzing cross sections for gamma gamma -> Lambda Anti-lambda and Sigma0 Anti-sigma0, and comparing results with quark-diquark model predictions.
Contribution
It provides new experimental measurements of strange baryon pair production cross sections in two-photon collisions at LEP energies.
Findings
Measured cross sections as a function of gamma gamma energy.
Compared experimental results with quark-diquark model predictions.
Abstract
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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