Speaker
Description
The hight interaction rate, fixed target experiment HADES at GSI, lo-
cated in Darmstadt, Germany, investigates collisions of heavy-ion, proton
and secondary pion beams with a target material. Hyperons are one of the
key observables for both heavy-ion and elementary collisions. The
challenge is to detect displaced vertices with good accuracy without hav-
ing a dedicated vertex detector, by employing state-of-the-art techniques.
In this contribution we discuss a newly developed tracking algorithm that
uses both a Kalman Filter (KF) and the high performance KF Particle pack-
age to further boost the reconstruction performance for hyperon decays
with displaced vertices.
With the use of the covariance matrices, which take into account effects
from multiple scattering and energy loss of the particles in the material, the
reconstruction performance of the tracking algorithm can be significantly
improved.
The KF Particle utilises these covariance matrices together with its own
internal KF to reconstruct primary and secondary decay vertices.
| Consider for long presentation | No |
|---|
