Speaker
Florian Kaspar
(Technical University of Munich)
Description
The light-meson spectrum can be studied by analyzing data from
diffractive dissociation of pion or kaon beams. The contributions of the
various different states that are produced in these reactions are disentangled
by the means of partial-wave analysis. A challenge in these analyses is
that the partial-wave expansion has to be truncated, i.e. that only a
finite subset of the theoretically infinitely many partial-wave
amplitudes can be inferred from the data. In recent years, different
groups have applied regularization techniques in order to determine the
contributing waves from the data. However, to obtain meaningful results
the choice of the regularization term and the tuning of its free
parameters are crucial. We will present our recent developments of
wave-selection methods for partial-wave analyses based on simulated
data for diffractively produced three-pion events.
This work was supported by the BMBF, the DFG Cluster of Excellence
“Origin and Structure of the Universe” (Exc 153), and the
Maier-Leibnitz-Laboratorium der Universität und der Technischen
Universität München.
Primary author
Florian Kaspar
(Technical University of Munich)
Co-authors
Boris Grube
(T)
Fabian Krinner
(M)
Stefan Wallner
(Technical University of Munich)
Stephan Paul
(Technical University of Munich)
