Vector Dominance in Photoproduction

May 27, 1968
5 pages
Published in:
  • Phys.Rev.Lett. 20 (1968) 1261-1265
  • Published: May 27, 1968

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Abstract:
It is shown that present data on photoproduction support the vector-dominance assump- tion for the hadron electromagnetic current, in direct tests which, require almost no ad- ditional symmetry- or model-dependent assumptions. Agreement with predictions is obtained for both the angular distribution and the magnitude of the photoproduction cross section, over a wide energy range. New model-independent experimental tests of vector dominance in photoproduction are proposed.