Exclusive baryon-antibaryon production in $γγ$ collisions at e+e- colliders

Details Exclusive baryon-antibaryon production in $γγ$ collisions at e+e- colliders Exclusive baryon-antibaryon production in $γγ$ collisions at e+e- colliders

2006-03-09

arxiv.org/abs/hep-ex/0603019v1

Physics

High Energy Physics

High Energy Physics - Experiment

6 pages, 9 figures, proceedings for the "First Workshop on Quark-Hadron Duality and the Transition to pQCD"

Scientific paper

The exclusive production of baryon-antibaryon pairs in the collisions of two quasi-real photons has been studied using different detectors at e+e- colliders. Results are presented for $\gamma\gamma\to$ proton antiproton, $\gamma\gamma\to\Lambda\bar{\Lambda}$, and $\gamma\gamma\to \Sigma^{0}\bar{\Sigma^{0}}$ final states. The cross-section measurements are compared with all the existing experimental data and with the analytic calculations based on the three-quark model, on the quark-diquark model, and on the handbag model.

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