在抗氢原子束中主量子数分布的测量

论文标题

在抗氢原子束中主量子数分布的测量

Measurement of the Principal Quantum Number Distribution in a Beam of Antihydrogen Atoms

论文作者

Kolbinger, B., Amsler, C., Cuendis, S. Arguedas, Breuker, H., Capon, A., Costantini, G., Dupré, 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, D. J., Nagata, Y., Nanda, A., Nowak, L., Radics, B., Sauerzopf, C., Simon, M. C., Tajima, M., Torii, H. A., Uggerhøj, U., Ulmer, S., Venturelli, L., Weiser, A., Wiesinger, M., Widmann, E., Wolz, T., Yamazaki, Y., Zmeskal, J.

论文摘要

asacusa（原子光谱和使用慢速抗抗原子的碰撞）协作计划，以测量CERN抗蛋白酶减速器的抗二氢基质的地面超精细分裂，初始相对精确度为10-6或更高，以测试基本CPT（CPT的组合，均值cpt和Party cpt and party cpt and Party Crigate，Time Regibe and Time Realighation corterigry）。这个具有挑战性的目标需要一个极化的抗氧束，并具有足够数量的抗二氢原子。描述了在几个MT的低磁场环境中的抗氢原子的量子状态分布的第一个测量。此外，讨论了数据驱动的机器学习分析以识别抗氢化事件。

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.

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