Tensorial Reconstruction at the Integrand Level

Details Tensorial Reconstruction at the Integrand Level Tensorial Reconstruction at the Integrand Level

2010-08-14

arxiv.org/abs/1008.2441v2

JHEP 1010:105,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

20 pages, 2 figures

Scientific paper

10.1007/JHEP10(2010)105

We present a new approach to the reduction of one-loop amplitudes obtained by reconstructing the tensorial expression of the scattering amplitudes. The reconstruction is performed at the integrand level by means of a sampling in the integration momentum. There are several interesting applications of this novel method within existing techniques for the reduction of one-loop multi-leg amplitudes: to deal with numerically unstable points, such as in the vicinity of a vanishing Gram determinant; to allow for a sampling of the numerator function based on real values of the integration momentum; to optimize the numerical reduction in the case of long expressions for the numerator functions.

Affiliated with

Also associated with

No associations

Rating

Tensorial Reconstruction at the Integrand Level does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Tensorial Reconstruction at the Integrand Level, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tensorial Reconstruction at the Integrand Level will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-42436