We show how to extract the coefficients of the 4-, 3-, 2- and 1-point one-loop scalar integrals
from the full one-loop amplitude of arbitrary scattering processes. In a similar fashion, also …

* Unless stated otherwise. nipulation. Unfortunately, earlier surveys of neurologists did not
review patient charts to determine the type of manipulation that was administered or even …

We present theoretical predictions for the hadroproduction of t\(\bar {\mathrm {t}}\) W+, t\(\bar
{\mathrm {t}}\) W− and t\(\bar {\mathrm {t}}\) Z at LHC as obtained by matching numerical …

We present a program that implements the OPP reduction method to extract the coefficients
of the one-loop scalar integrals from a user defined (sub)-amplitude or Feynman Diagram, as …

Based on the OPP technique and the HELAC framework, HELAC-1LOOP is a program that
is capable of numerically evaluating QCD virtual corrections to scattering amplitudes. A …

HELAC is a FORTRAN based package that is able to compute efficiently helicity amplitudes
for arbitrary scattering processes within the standard electroweak theory. The algorithm …

Results for next-to-leading order QCD corrections to the\(pp\left ({p\bar {p}}\right)\to t\bar {t}\to
{W^{+}}{W^{-}} b\bar {b}\to {e^{+}}{\nu_e}{\mu^{-}}{\bar {\nu} _\mu} b\bar {b}+ X\) processes …

The various sources of Rational Terms contributing to the one-loop amplitudes are critically
discussed. We show that the terms originating from the generic (n− 4)-dimensional structure …

We present predictions for the production cross-section of a Standard Model Higgs boson in
association with a pair at next-to-leading order accuracy using matrix elements obtained …

The updated version of the Helac-Phegas 1 event generator is presented. The matrix elements
are calculated through Dyson–Schwinger recursive equations using color connection …