Matching Parton Shower and matrix elements in QED
arXiv:hep-ph/0609313
Abstract
We report on a high-precision calculation of the Bhabha process in QED, of interest for precise luminosity determination of low-energy electron-positron colliders. The calculation is based on the matching of exact next-to-leading order corrections with a Parton Shower algorithm. The structure of the algorithm (implemented in an improved version of the event generator BABAYAGA) is illustrated, with a discussion on the resulting theoretical uncertainty, of the order of 0.1 %.
4 pages. Talk given at the XXXIII International Conference on High Energy Physics, ICHEP06, Moscow, 26 July - 02 August, 2006