SARGE: an algorithm for generating QCD-antennas

Abstract

We present an algorithm to generate any number of random massless momenta in phase space, with a distribution that contains the kinematical pole structure that is typically found in multi-parton QCD-processes. As an application, we calculate the cross-section of some \eplus\eminus \to partons processes, and compare SARGE's performance with that of the uniform-phase space generator RAMBO.

Figures (2)

• Figure 1: The expected relative error as function of the number of generated events.
• Figure 2: The expected relative error as function of cpu-time.