Loop integration results using numerical extrapolation for a non-scalar integral
Abstract
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.
- Publication:
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Nuclear Instruments and Methods in Physics Research A
- Pub Date:
- November 2004
- DOI:
- 10.1016/j.nima.2004.07.099
- arXiv:
- arXiv:hep-ph/0405098
- Bibcode:
- 2004NIMPA.534..269D
- Keywords:
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- High Energy Physics - Phenomenology
- E-Print:
- 4 pages, 3 figures, revised, contribution to ACAT03 (Dec. 2003)