EXTRACTION OF INFRARED DIVERGENCES IN THE DIMENSIONAL REGULARIZED TWO-LOOP LADDER GRAPH

6533b7d4fe1ef96bd1262617

RESEARCH PRODUCT

EXTRACTION OF INFRARED DIVERGENCES IN THE DIMENSIONAL REGULARIZED TWO-LOOP LADDER GRAPH

subject

Physics Nuclear and High Energy Physics symbols.namesake Dimensional regularization Infrared Mathematical analysis Scalar (mathematics)symbols Feynman diagram Astronomy and Astrophysics Ladder graph Atomic and Molecular Physics and Optics

description

We consider the evaluation of the fundamental scalar integral in the on-shell two-loop ladder graph with different external masses and arbitrary transfer momentum. A method for cleanly extracting the infrared divergences in the Feynman parameter integrals using dimensional regularization is presented, and we analyze one of the finite part contributions to this integral.

year	journal	country	edition	language
1994-08-10	International Journal of Modern Physics A

https://doi.org/10.1142/s0217751x94001412

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