The development of the antihydrogen beam detector and the detection of the antihydrogen atoms for in-flight hyperfine spectroscopy

29th International Conference on Photonic, Electronic, and Atomic Collisions

Nagata, Y.^1 ; Sauerzopf, C.^2 ; Capon, A.^2 ; Kuroda, N.^3 ; Abo, Y.^4 ; Diermaier, M.^2 ; Dupre, P.^1 ; Higashi, Y.^3 ; Ishikawa, S.^3 ; Kaga, C.^4 ; Leali, M.^5 ; Malbrunot, C.^2,6 ; Mascagna, V.^5 ; Murtagh, D.^1 ; Radics, B.^1 ; Simon, M.C.^2 ; Tajima, M.^3 ; Torii, H.A.^3 ; Van Gorp, S.^1 ; Zmeskal, J.^2 ; Breuker, H.^6 ; Higaki, H.^4 ; Kanai, Y.^1 ; Matsuda, Y.^3 ; Ulmer, S.^7 ; Venturelli, L.^5 ; Widmann, E.^2 ; Yamazaki, Y.^1

Atomic Physics Laboratory, RIKEN, Wako, Saitama

351-0198, Japan^1

Stefan Meyer Institute for Subatomic Physics, Boltzmanngasse 3, Vienna

1090, Austria^2

Graduate School of Arts and Sciences, University of Tokyo, Komaba, Meguro, Tokyo

153-8902, Japan^3

Graduate School of Advanced Sciences of Matter, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima

739-8530, Japan^4

Dipartimento di Ingegneria Dell' Informazione, Università di Brescia, Istituto Nazionale di Fisica Nucleare, Gruppo Collegato di Brescia, Brescia

25133, Italy^5

CERN, Geneva 23

CH-1211, Switzerland^6

RIKEN Ulmer Initiative Research Unit, RIKEN, Wako, Saitama

351-0198, Japan^7

关键词: Antihydrogen;    Antihydrogen atoms;    Beam detectors;    Cpt symmetries;    Hyperfines;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/2/022061/pdf
DOI  :  10.1088/1742-6596/635/2/022061

来源: IOP

【 摘 要 】

We have been developing ground-state antihydrogen atomic beams to test CPT symmetry via in-flight hyperfine spectroscopy. A new antihydrogen beam detector has been developed. The overview of the experiment, the detail of the detector and latest results will be presented.