Mainz 2022 – wissenschaftliches Programm
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AKBP: Arbeitskreis Beschleunigerphysik
AKBP 5: Hadron Accelerators – New Devices and Techniques
AKBP 5.4: Vortrag
Dienstag, 29. März 2022, 14:45–15:00, AKBP-H13
Modeling of the optical setting for the measurement of the electric dipole moment of protons at cooler synchrotron COSY — •Mariia Manerova1,2,3, Andreas Lehrach1,2, and Maximilian Vitz1,2 for the JEDI collaboration — 1Institute for Nuclear Physics IV, FZ Jülich, Germany — 2III. Physikalishes Institut B, RWTH Aachen University, Aachen, Germany — 3GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany
Electric Dipole Moments (EDMs) of elementary particles are considered to be an excellent probe of physics beyond the Standard Model (SM). They violate parity and time reversal, while through the CPT-theorem also breaking the CP-symmetry. This mechanism may explain the matter-antimatter asymmetry in the universe.
The JEDI (Jülich Electric Dipole moment Investigations) collaboration uses storage rings to measure the EDMs of protons and deuterons with high precision. In a preliminary experiment, measurements of the EDM for deuterons were performed at COSY (COoler SYnchrotron) in Jülich. One important prerequisite for these experiments was the modelling of the optical settings and the beam orbit in COSY to analyze the EDM measurement results.
Further steps include measurements of the proton EDM at COSY. The planned experiments on the proton spin coherence time at COSY will therefore be accompanied by simulation calculations with Bmad. The talk focuses on the model calculation of the beam orbit and optical functions of COSY and compares those to the measurement to achieve a significantly better model description of COSY.