Speaker
Description
In the framework of the Standard Model, CPT symmetry demands the same fundamental prop-
erties for matter and antimatter. The precise measurement of the ground state hyperfine structure
of antihydrogen and its comparison to that of hydrogen is a sensitive test of CPT invariance. A
Ramsey type beam spectroscopy method [1] has the potential to improve this precision by a factor
of 10 over the existing Rabi type setup [2] at CERN. The design phase for this new set-up is under-
way and the case studies considering the microwave cavities and surface coils, which shall be used
for perturbations will be presented. The most optimal solution from these cases will govern the
decision whether to adapt to a longitudinal or transverse static magnetic field design. Although the
characterisation of the spectrometer line will be done using hydrogen, its scalability for the case
of antihydrogen shall also be discussed.
