Abstract

The PANDA detector, which studies proton antiproton annihilations, will be installed at the future facility for antiproton and ion research in Darmstadt, Germany. PANDA has a wide physics program including the study of excited hyperon states. One very specific feature of most hyperon ground states are long decay lengths of several centimeters. The innermost tracking detector of PANDA, the Micro Vertex Detector, is not optimized for these long decay lengths. Therefore, an upgrade option is proposed adding two additional disks in the forward region called Lambda Disk Detector. For this new detector acceptance studies have been performed using the decay channel p‾p→Λ‾Λ→p‾pπ+π−. Simulations were carried out using the PandaRoot framework based on FairRoot.

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