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arXiv · hep-lat/9511031

The Landshoff-Nachtmann Pomeron on the Lattice

D. S. Henty·C. Parrinello·D. G. Richards
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Abstract

We investigate the Landshoff-Nachtmann two-gluon-exchange model of the Pomeron using gluon propagators computed in the Landau gauge within quenched lattice QCD calculations. We first determine an effective gluon-quark coupling by constraining the Pomeron-quark coupling to its phenomenological value $β_0 = 2\, \gev^{-1}$. We then provide predictions for a variety of diffractive processes. As the propagators have been evaluated entirely from QCD first principles (although in the quenched approximation), our results provide a consistency check of the Landshoff-Nachtmann model. We address the issue of the possible gauge-dependence of our results, which will be the object of a future study.

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D. S. Henty, C. Parrinello, D. G. Richards. 1995-11-30. The Landshoff-Nachtmann Pomeron on the Lattice. https://doi.org/10.1016/0370-2693(95)01524-8

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