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ID: 544435.0, MPI für Physik / MPI für Physik
Techniques for one-loop tensor integrals in many-particle processes
Authors:
Date of Publication (YYYY-MM-DD):2006
Title of Journal:Nuclear Physics B - Proceedings Supplements
Journal Abbrev.:Nucl.Phys.B (Proc.Suppl.)
Issue / Number:157
Start Page:53
End Page:57
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:We briefly sketch the methods for a numerically stable evaluation of tensor one-loop integrals that have been used in the calculation of the complete electroweak one-loop corrections to $\Pep\Pem\to4$fermions. In particular, the improvement of the new methods over the conventional Passarino--Veltman reduction is illustrated for some 4-point integrals in the delicate limits of small Gram (and other kinematical) determinants.
Classification / Thesaurus:Phenomenology of High Energy Physics
Comment of the Author/Creator:5 pages, latex, 2 postscript figures, to appear in the proceedings of the "7th International Symposium on Radiative Corrections (RADCOR2005)", Shonan Village, 2005
External Publication Status:published
Document Type:Conference-Paper
Communicated by:N.N.
Affiliations:
Identifiers:
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