Automatic Computation Of Three-Loop Two-Point Functions In Large Momentum Expansion

Preprint

22 November 1996

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/9611354

Abstract

We discuss the calculation of two-point three-loop functions with an arbitrary number of massive propagators and one large external momentum. The relevant subdiagrams are generated automatically. The resulting massless two-point integrals and massive tadpoles are transformed on-line to FORM-expressions ready to be used by existing FORM packages which calculate them analytically. As an example we compute the quartic mass corrections to the photon polarization function.

Keywords

AUTOMATIC COMPUTATION
MOMENTUM EXPANSION
POINT FUNCTIONS
LARGE MOMENTUM
AUTOMATICALLY
POLARIZATION
TWO POINT
LOOP TWO
PHOTON

All Related Versions

Version 1, 1996-11-18, ArXiv
Version 2, 1996-11-22, ArXiv
Published version: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 389 (1-2), 354.

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