Towards Measuring the Ground State Hyperfine Splitting of Antihydrogen -- A Progress Report

Authors :: M. C. Simon
Yasuyuki Matsuda
S. Vamosi
A. A. Capon
Sebastian Lehner
P. Dupre
M. Leali
Chloé Malbrunot
Yasunori Yamazaki
Naofumi Kuroda
E. Lodi Rizzini
S. Van Gorp
B. Kolbinger
O. Massiczek
Stefan Ulmer
C. Sauerzopf
Y. Higashi
Eberhard Widmann
L. Venturelli
Yugo Nagata
H. Breuker
Yasuyuki Kanai
C. Kaga
Valerio Mascagna
M. Diermaier
M. Tajima
Ken Suzuki
B. Radics
Hiroyuki Higaki
Johann Zmeskal
D. J. Murtagh
Publication Year :: 2016
Publisher :: arXiv, 2016.
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.<br />Comment: 5 pages, 2 figures, 6th International Symposium on Symmetries in Subatomic Physics (SSP2015)

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