Towards measuring the ground state hyperfine splitting of antihydrogen – a progress report

• DOI: 10.1007/s10751-016-1309-2
• Publication Date: 2016-06-20T08:06:58Z
• Authors: C. Sauerzopf; A. A. Capon; M. Diermaier; P. Dupré; Y. Higashi; C. Kaga; B. Kolbinger; M. Leali; S. Lehner; E. Lodi Rizzini; C. Malbrunot; V. Mascagna; O. Massiczek; D. J. Murtagh; Y. Nagata; B. Radics; M. C. Simon; K. Suzuki; M. Tajima; S. Ulmer; S. Vamosi; S. van Gorp; J. Zmeskal; H. Breuker; H. Higaki; Y. Kanai; N. Kuroda; Y. Matsuda; L. Venturelli; E. Widmann; Y. Yamazaki
• Keywords: Physics - Instrumentation and Detectors; FOS: Physical sciences; Instrumentation and Detectors (physics.ins-det); Antihydrogen; CPT; Field-ioniser; PIPS; Precision spectroscopy; Atomic and Molecular Physics, and Optics; Nuclear and High Energy Physics; Condensed Matter Physics; Physical and Theoretical Chemistry

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.<br/>5 pages, 2 figures, 6th International Symposium on Symmetries in Subatomic Physics (SSP2015)<br/>