2003/09/10 by C. F. Berger, W. Schweiger
Physics and Astronomy · #hep-ph
published as Fizika B13 (2004) 75-80 · 7 pages, 2 figures; v2: institutions updated, paper unchanged
arxiv created 2003/09/10 · arxiv updated 2009/12/01
We present a perturbative calculation of baryon pair production in two-photon collisions, γγ→ B 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 pp, ΛΛ, and Σ0Σ0 channels.