PANDA Forward Endcap EMC

by Dr Claudius Schnier (Ruhr-Universitaet Bochum (DE))

Friday 12 Dec 2025, 14:30 → 15:15 Europe/Zurich

NB2/158 (RUB)

Abstract:

The PANDA detector is a versatile spectrometer featuring precise track reconstruction and the capability to detect both neutral and charged particles. The homogeneous electromagnetic calorimeter (EMC) of the target spectrometer — divided into a barrel-shaped central section and two endcaps — constitutes a key detector component for measuring the energies of electrons, positrons, and photons. Lead tungstate (PbWO₄) is used as a scintillator, chosen among other reasons for its high radiation hardness, short scintillation decay time, and the short radiation length required by the compact detector design. The EMC is cooled down to −25 °C, since the light yield of PbWO₄ increases with decreasing temperature.

An overview of the EMC detector design is presented. The discussion covers the detector components of the forward endcap, their composition and purpose — including the cooling system, the submodules, and the monitoring system —as well as other components necessary for the construction of the detector.