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Contact electromagnetic terms in inclusive photo- and electroproduction
Authors:L.E. Ibañez
Affiliation:Departemento de Fisica Teorica, Universidad Autonoma de Madrid, Canto Blanco, Madrid-34, Spain
Abstract:It is shown that contact electromagnetic terms in the photo- and electroproduction exclusive channels can account for a substantial amount of the inclusive real and virtual γp total cross sections. In particular, one gets σ(γp)exp?σVMD (?, ω, φ) + σ(contact) for Q2=0 and hence no infinite vector mesons (GVMD) seem to be required. The same result is valid for Q2<0. A parallelism with the parton approach is noted.
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