Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2003-10-07
Physics
High Energy Physics
High Energy Physics - Phenomenology
8 pages, LaTeX, axodraw.sty
Scientific paper
Using the newly modified method developed for symbolic evaluation of Feynman
amplitudes we examine two processes $2\to 2$ (including a case of Majorana
fermions) at a tree level. Constructing special polarization basis for spinor
particles, we obtain compact expressions for helicity amplitudes. We present
the regular way for simplification of evaluated symbolic expressions.
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