Worldline Green functions for multiloop diagrams
نویسندگان
چکیده
منابع مشابه
Relation between worldline Green functions for scalar two-loop diagrams
We discuss a relation between two-loop bosonic worldline Green functions which are obtained by Schmidt and Schubert in two different parametrizations of a twoloop worldline. These Green functions are transformed into each other by some transformation rules based on reparametrizations of the proper time and worldline modular parameters. 1 Fellow of the Danish Research Academy, [email protected]...
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When loop momenta of a Feynman or a nonabelian cut diagram are written in lightcone coordinates, integration over their + components can be performed using residue calculus. This yields a number of terms, in which the + components of their internal momenta are evaluated at the poles of appropriate internal lines. The challenge is to find these internal lines for an arbitrarily complicated multi...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1994
ISSN: 0370-2693
DOI: 10.1016/0370-2693(94)90944-x