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Hard exclusive baryon-antibaryon production in 2-$γ$ collisions

C. F. Berger·W. Schweiger
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Abstract

We present a perturbative calculation of baryon pair production in two-photon collisions, $γγ\to B \bar{B}$, in which baryons are treated as quark-diquark systems. Our approach accounts for constituent mass effects in a systematic way. Taking the diquark-model parameters from foregoing studies of other electron- and photon-induced baryonic reactions, our results agree well with the most recent large momentum-transfer data for the $p\bar{p}$, $Λ\barΛ$, and $Σ^0\barΣ^0$ channels.

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C. F. Berger, W. Schweiger. 2003-09-10. Hard exclusive baryon-antibaryon production in 2-$γ$ collisions. https://arxiv.org/abs/hep-ph/0309095

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