#FIG 3.2 Produced by RustFig #encoding: UTF-8 Landscape Center Inches Letter 100.00 Single -2 1200 2 # Feynman diagram: momentum arrow to the left # Short arrow of 1/2 inch to place beside a line; add the label k or p as LaTeX text. Keywords: feynman momentum 6 300 300 900 300 2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 1 0 2 1 1 1.00 75.00 120.00 900 300 300 300 -6