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)
