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Eikonal propagators for the high-energy parton-parton scattering in gauge theories

Enrico Meggiolaro
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Abstract

By a direct resummation of perturbation theory in the limit of very high energy and small transferred momentum (the so-called ``eikonal'' limit), we derive expressions for the truncated-connected quark, antiquark and gluon propagators in an external gluon field, both for scalar and fermion gauge theories. These are the basic ingredients to derive ``soft'' high-energy parton-parton scattering amplitudes, using the LSZ reduction formulae and a functional integral approach.

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Enrico Meggiolaro. 2001-07-24. Eikonal propagators for the high-energy parton-parton scattering in gauge theories. https://doi.org/10.1142/9789812778352_0008

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