The future experiment \PANDA@FAIR is a fix-target $\bar p p$ experiment that will run in the energy range [1.5-15.0] GeV, and it is supposed to reach a peak luminosity up to 2$\cdot$10$^{31}$ cm$^{-2}$ s$^{-1}$ in the first phase of data taking. This will allow to perform a number of analyses which are suppressed or forbidden at running experiments, especially in the sector of charm and charmonium physics. Investigating narrow resonances, measure their width and understand their properties is the core of the \PANDA~physics program in the {\it day-one} experiment. This contribution reports about the feasibility studies to measure the width of very narrow states by performing a threshold scan. The case of the $D_{0s}^*(2317)^+$ will be discussed with new theoretical developments to evaluate the cross section and the rate for the process $\bar p p \rightarrow D_s^- D_{s0}^*(2317)^+$, as an original contribution of the \PANDA~physics program. Eventually new resonances with $\bar c c \bar s s$ quark content could be investigated in the $D_s^- D_{s0}^*(2317)^+$ invariant mass system. We recall that recently the LHCb experiment published about four resonances with the above mentioned quark content in the $J/\psi \phi$ invariant mass system through B decays, only. Therefore the hereby presented study might be of high interest from experimental as well as theoretical point of view, and offers a complimentary search in a different reaction mechanism.

In this paper different propagation methods for the extraploation of tracks from the STT to the EMC are studied and a new, momentum and particle type dependent quality cut was introduced to improve the completness and the purity of charged candidates.

The PANDA experiment, currently under construction at the Facility for Antiproton and Ion Research (FAIR) in Darmstadt, Germany, addresses fundamental questions in hadron and nuclear physics via interactions of antiprotons with nuclei. It will be installed at the High Energy Storage Ring (HESR), which will provide an antiproton beam with a momentum range of 1.5 - 15 GeV/c and enables a high average interaction rate on the fixed target of 2 x 10^7 events/s. The PANDA experiment adopts a continuous data acquisition and the expected data rate transmitted to a high-bandwidth computing network will be in the order of 200 GB/s. However, in order to select very rare physics processes, an indiscriminate hardware trigger does not suffice. Instead, an online software-based data selection system will be used to achieve a data reduction of a factor 100 - 1000. This demands a highly advanced online analysis due to the high interaction rate which has to deal also with overlapping event data. Scalability and parallelization of the reconstruction algorithms are therefore a particular focus in the development process. An simulation framework called PandaRoot is used to develop and evaluate different reconstruction algorithms for event building, tracking and particle identification as well as to further optimize the detector performance. An overview about PandaRoot and the requirements on the event reconstruction algorithms is presented and algorithms for the event time reconstruction currently under development are discussed.