Numerical Evaluation of One-Loop Diagrams Near Exceptional Momentum Configurations
نویسندگان
چکیده
منابع مشابه
ar X iv : h ep - p h / 04 07 01 6 v 1 1 J ul 2 00 4 Numerical Evaluation of One - Loop Diagrams Near Exceptional Momentum Configurations
One problem which plagues the numerical evaluation of one-loop Feynman diagrams using recursive integration by part relations is a numerical instability near exceptional momentum configurations. In this contribution we will discuss a generic solution to this problem. As an example we consider the case of forward light-by-light scattering.
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ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 2004
ISSN: 0920-5632
DOI: 10.1016/j.nuclphysbps.2004.09.028