LOOP INTEGRALS, ℛ-FUNCTIONS AND THEIR ANALYTIC CONTINUATION
- 20 August 1994
- journal article
- Published by World Scientific Pub Co Pte Ltd in Modern Physics Letters A
- Vol. 9 (25) , 2335-2345
- https://doi.org/10.1142/s0217732394002203
Abstract
To determine entirely the resulting functions of one-loop integrals it is necessary to find the correct analytic continuation to all relevant kinematical regions. We argue that this continuation procedure may be performed in a general and mathematical accurate way by using the ℛ-function notation of these integrals. The two- and three-point cases are discussed explicitly in this manner.Keywords
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