27 September 2004 to 1 October 2004
Interlaken, Switzerland
Europe/Zurich timezone

New Applications of PAX in Physics Analyses at Hadron Colliders

30 Sep 2004, 10:00
1h
Coffee (Interlaken, Switzerland)

Coffee

Interlaken, Switzerland

Board: 51
poster Track 2 - Event processing Poster Session 3

Speaker

A. Schmidt (Institut fuer Experimentelle Kernphysik, Karlsruhe University, Germany)

Description

At CHEP03 we introduced "Physics Analysis eXpert" (PAX), a C++ toolkit for advanced physics analyses in High Energy Physics (HEP) experiments. PAX introduces a new level of abstraction beyond detector reconstruction and provides a general, persistent container model for HEP events. Physics objects like fourvectors, vertices and collisions can easiliy be stored, accessed and manipulated. Bookkeeping of relations between these objects (like decay trees, vertex and collision separation, including deep copies etc.) is fully provided by a "relation manager". Event container and associated objects represent a uniform interface for algorithms and facilitate the parallel development and evaluation of different physics interpretations of individual events. So called "analysis factories", which actively identify and distinguish different physics processes, can easily be constructed with the PAX toolkit. PAX has been officially released to the experiments CDF (Tevatron) and CMS (LHC) during the last year. It is being explored by a growing user community and applied in various complex physics analyses. We report about the successful application in studies of ttbar production at the Tevatron and Higgs searches in the channel ttH at the LHC.

Primary authors

A. Schmidt (Institut fuer Experimentelle Kernphysik, Karlsruhe University, Germany) C. Jung (Institut fuer Experimentelle Kernphysik, Karlsruhe University, Germany) C. Weiser (Institut fuer Experimentelle Kernphysik, Karlsruhe University, Germany) D. Hirschbuehl (Institut fuer Experimentelle Kernphysik, Karlsruhe University, Germany) G. Quast (Institut fuer Experimentelle Kernphysik, Karlsruhe University, Germany) J. Rehn (Institut fuer Experimentelle Kernphysik, Karlsruhe University, Germany) K. Rabbertz (Institut fuer Experimentelle Kernphysik, Karlsruhe University, Germany) M. Erdmann (Institut fuer Experimentelle Kernphysik, Karlsruhe University, Germany) M. Kirsch (Institut fuer Experimentelle Kernphysik, Karlsruhe University, Germany) P. Schemitz (Institut fuer Experimentelle Kernphysik, Karlsruhe University, Germany) S. Kappler (Institut fuer Experimentelle Kernphysik, Karlsruhe University, Germany) S. Schalla (Institut fuer Experimentelle Kernphysik, Karlsruhe University, Germany) T. Walter (Institut fuer Experimentelle Kernphysik, Karlsruhe University, Germany) U. FELZMANN (University of Karlsruhe, Germany)

Presentation Materials