17,466 research outputs found

    On Vector Dominance

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    We argue that a Regge-pole modification of the VDM puts on equal footing the asymptotic behaviour of electromagnetic and neutral vector meson currents.Comment: 4 page

    Regge-Eikonal Approach and its off-Shell Extention Versus Experimental Data

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    We develop an off-shell extention of the Regge-eikonal approach which automatically takes into account off-shell unitarity. We argue that exclusive vector-meson production cross-sections measured at HERA can be fairly described with classical universal Regge trajectories. No extra ``hard'' trajectories of high intercept are needed for that.Comment: 15 pages, 18 figures, uses ws-p8-50x6-00.cls, epsf.sty, amsfonts.sty, to be published in the Proceedings of the International Conference on Elastic and Diffractive Scattering (VIIIth 'Blois Workshop') June 28 - July 2, 1999 Protvino, Russi
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