  The Belle II experiment, located at the SuperKEKB collider at the high-energy
research facility KEK in Tsukuba, Japan, started operation in 2018. Compared to
the predecessor experiment Belle, Belle II plans to increase the peak
luminosity by a factor of about 40, by employing nano-beam technology in the
interaction region. In particular the new, innermost sub-detector of Belle II -
the Pixel Vertex Detector (PXD) - is in close proximity to the interaction
point. This allows for the detection of particles, which do not leave a signal
in the outer sub-detectors. Among these, Highly Ionizing Particles (HIPs)
encounter a characteristically high energy loss, limiting their penetration
depth into the detector. Anti-deuterons and magnetic monopoles as possible HIPs
are considered. Without a signal in the outer sub-detectors, no track trigger
is issued, resulting in possible information loss. The possibility of
identifying HIPs solely with information provided by the PXD is presented, by
using neural network algorithms operating in a multidimensional parameter space
of PXD cluster data.
