26-30 March 2012
University of Bonn
Europe/Berlin timezone

New features in version 2 of the fastNLO project

29 Mar 2012, 09:00
Wolfgang Paul Lecture Hall (University of Bonn)

Wolfgang Paul Lecture Hall

University of Bonn

Kreuzbergweg 28, 53115 Bonn, Germany,
Hadronic final states/structure functions Combined: Hadronic final states/structure functions


Daniel Andreas Britzger (DESY)


Standard methods for higher-order pQCD calculations of cross sections in hadron-induced collisions are time-consuming. The fastNLO project uses multi-dimensional interpolation techniques to convert the convolutions of perturbative coefficients with parton distribution functions and the strong coupling into simple products. By integrating the perturbative coefficients for a given observable with interpolation kernels, fastNLO can store the results of the time-consuming calculation in tables which can subsequently be used for very fast calculations of the same observable for arbitrary PDFs, alpha_s, and different scales. These tables and corresponding user codes are currently available for a large number of jet measurements at the LHC, the Fermilab Tevatron, and HERA. fastNLO is currently used in publications of experimental results by the ATLAS, CMS, CDF, D0, and H1 collaborations, and in all recent global PDF analyses by MSTW, CTEQ, and NNPDF. This talk will focus on new developments, implemented in the new version 2 of fastNLO, which enhance and broaden the functionality.

Primary author


Fred Stober (KIT - Karlsruhe Institute of Technology (DE)) Klaus Rabbertz (KIT - Karlsruhe Institute of Technology (DE)) Markus Wobisch (Louisiana Technical University (US))

Presentation materials