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hep-ph1996
Gauge Cancellation for Electroweak Processes and the Gervais-Neveu Gauge
Y. J. Feng, C. S. Lam
A graphical method is developed to study the total or partial cancellation of gauge-dependent (divergence) terms in electroweak theory. The method is used to work out rules in the…
hep-ph1996
Nonabelian Cut Diagrams and their Applications
C. S. Lam
A new kind of cut diagram is introduced to sum Feynman diagrams with nonabelian vertices. Unlike the Cutkosky diagrams which compute the discontinuity of single Feynman diagrams, t…
hep-ph1996
Soft Interaction of Heavy Fermions
C. S. Lam
We discuss a formula for the sum of tree diagrams of -bosons scattering from a heavy fermion. This formula can be considered as a generalization of the eikonal formula to includ…