Loop integration results using numerical extrapolation for a non-scalar integral

✍ Scribed by E. de Doncker; Y. Shimizu; J. Fujimoto; F. Yuasa; K. Kaugars; L. Cucos; J. Van Voorst

• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 240 KB
• Volume: 534
• Category: Article
• ISSN: 0168-9002
• DOI: 10.1016/j.nima.2004.07.099

✦ Synopsis

Loop integration results have been obtained using numerical integration and extrapolation. An extrapolation to the limit is performed with respect to a parameter in the integrand which tends to zero. Results are given for a non-scalar four-point diagram. Extensions to accommodate loop integration by existing integration packages are also discussed. These include: using previously generated partitions of the domain and roundoff error guards.