Hard exclusive baryon-antibaryon production in 2-$γ$ collisions
Abstract
Description
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.
7 pages, 2 figures; v2: institutions updated, paper unchanged
7 pages, 2 figures; v2: institutions updated, paper unchanged