New representation of the two loop crossed vertex function

Sep, 1996
15 pages
Published in:
  • Nucl.Phys.B 488 (1997) 426-440
e-Print:
Report number:
  • MZ-TH-96-30

Citations per year

199620032010201720220123456
Abstract:
We calculate the two-loop vertex function for the crossed topology, and for arbitrary masses and external momenta. We derive a double integral representation, suitable for a numerical evaluation by a Gaussian quadrature. Real and imaginary parts of the diagram can be calculated separately.
  • 02.70.+d
  • 12.38.Bx
  • 11.20.Dj
  • Feynman diagrams
  • 2-loop calculations
  • Radiative corrections
  • Vertex function
  • vertex function: higher-order
  • Feynman graph: massive
  • numerical calculations