We present a method for symbolic evaluation of Feynman amplitudes. We
construct special polarization basis for spinor particles which produces
compact expressions for tensor products of basis spinors.Comment: Standard LaTeX, 6 pages. To appear in the proceedings of the Seventh
  International Workshop on Advanced Computing and Analysis Technics in Physics
  Research (ACAT2000, Fermilab, October 16-20, 2000

Cherzor, P. S.

Ilyin, V. A.

Pukhov, A. E.

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