Measurement of the principal quantum number distribution in a beam of antihydrogen atoms
| Title | Measurement of the principal quantum number distribution in a beam of antihydrogen atoms |
| Publication Type | Journal Article |
| Year of Publication | 2021 |
| Authors | Kolbinger, B, Amsler, C, S. Cuendis, A, Breuker, H, Capon, A, Costantini, G, Dupre, P, Fleck, M, Gligorova, A, Higaki, H, Kanai, Y, Kletzl, V, Kuroda, N, Lanz, A, Leali, M, Mäckel, V, Malbrunot, C, Mascagna, V, Massiczek, O, Matsuda, Y, Murtagh, DJ, Nagata, Y, Nanda, A, Nowak, L, Radics, B, Sauerzopf, C, Simon, MC, Tajima, M, Torii, HA, Uggerhøj, U, Ulmer, S, Venturelli, L, Weiser, A, Wiesinger, M, Widmann, E, Wolz, T, Yamazaki, Y, Zmeskal, J |
| Volume | 75 |
| Issue | 3 |
| Pagination | 91 |
| Date Published | 2021/03/08 |
| ISBN Number | 1434-6079 |
| Abstract | The ASACUSA (Atomic Spectroscopy And Collisions Using Slow Antiprotons) collaboration plans to measure the ground-state hyperfine splitting of antihydrogen in a beam at the CERN Antiproton Decelerator with initial relative precision of $$10^{-6}$$or better, to test the fundamental CPT (combination of charge conjugation, parity transformation and time reversal) symmetry between matter and antimatter. This challenging goal requires a polarised antihydrogen beam with a sufficient number of antihydrogen atoms in the ground state. The first measurement of the quantum state distribution of antihydrogen atoms in a low magnetic field environment of a few mT is described. Furthermore, the data-driven machine learning analysis to identify antihydrogen events is discussed. |
| URL | https://doi.org/10.1140/epjd/s10053-021-00101-y |
| Short Title | The European Physical Journal D |