Towards Measuring the Ground State Hyperfine Splitting of Antihydrogen -- A Progress Report
C. Sauerzopf, A. Capon, M. Diermaier, P. Dupr\'e, Y., Higashi, C. Kaga, B. Kolbinger, M. Leali, S. Lehner, E. Lodi, Rizzini, C. Malbrunot, V. Mascagna, O. Massiczek, D. J. Murtagh, and Y. Nagata, B. Radics, M. C. Simon, K. Suzuki, M. Tajima and, S. Ulmer, S. Vamosi, S. van Gorp
TL;DR
This paper reports progress in measuring the ground state hyperfine splitting of antihydrogen by commissioning a new field-ioniser chamber and associated detectors, advancing precision spectroscopy of antimatter.
Contribution
Introduction of a dedicated field-ioniser chamber and detection system for antihydrogen hyperfine spectroscopy, enabling improved quantum state measurements.
Findings
Successful commissioning of the ioniser chamber
Integration with beam normalisation detectors achieved
Enhanced capability for antihydrogen hyperfine measurements
Abstract
We report the successful commissioning and testing of a dedicated field-ioniser chamber for measuring principal quantum number distributions in antihydrogen as part of the ASACUSA hyperfine spectroscopy apparatus. The new chamber is combined with a beam normalisation detector that consists of plastic scintillators and a retractable passivated implanted planar silicon (PIPS) detector.
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