  A feasibility study has been performed in order to investigate the
performance of the HADES detector to measure the electromagnetic decays of the
hyperon resonances $\Sigma(1385)^0$, $\Lambda(1405)$ and
$\Lambda{\Lambda}(1520)$ as well as the production of double strange baryon
systems $\Xi^-$ and $\Lambda\Lambda$ in p+p reactions at a beam kinetic energy
of 4.5 GeV. The existing HADES detector will be upgraded by a new Forward
Detector, which extends the detector acceptance into a range of polar angles
that plays a crucial role for these investigations. The analysis of each
channel is preceded by a consideration of the production cross-sections.
Afterwards the expected signal count rates using a target consisting of either
liquid hydrogen or polyethylene are summarized.
