D0C : A code to calculate scalar one-loop four-point integrals with complex masses
High Energy Physics - Phenomenology
2010-04-21 v2
Abstract
We present a new Fortran code to calculate the scalar one-loop four-point integral with complex internal masses, based on the method of 't Hooft and Veltman. The code is applicable when the external momenta fulfill a certain physical condition. In particular it holds if one of the external momenta or a sum of them is timelike or lightlike and therefore covers all physical processes at colliders. All the special cases related to massless external particles are treated separately. Some technical issues related to numerical evaluation and Landau singularities are discussed.
Cite
@article{arxiv.0902.0325,
title = {D0C : A code to calculate scalar one-loop four-point integrals with complex masses},
author = {Dao Thi Nhung and Le Duc Ninh},
journal= {arXiv preprint arXiv:0902.0325},
year = {2010}
}
Comments
Version published in CPC