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arXiv 2008.04246physics.atom-ph
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反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

B. Kolbinger, C. Amsler, S. Arguedas Cuendis, H. Breuker, A. Capon, G. Costantini, P. Dupré, M. Fleck, A. Gligorova, H. Higaki, Y. Kanai, V. Kletzl, N. Kuroda, … 展开作者

B. Kolbinger, C. Amsler, S. Arguedas Cuendis, H. Breuker, A. Capon, G. Costantini, P. Dupré, M. Fleck, A. Gligorova, H. Higaki, Y. Kanai, V. Kletzl, N. Kuroda, A. Lanz, M. Leali, V. Mäckel, C. Malbrunot, V. Mascagna, O. Massiczek, Y. Matsuda, D. J. Murtagh, Y. Nagata, A. Nanda, L. Nowak, B. Radics, C. Sauerzopf, M. C. Simon, M. Tajima, H. A. Torii, U. Uggerhøj, S. Ulmer, L. Venturelli, A. Weiser, M. Wiesinger, E. Widmann, T. Wolz, Y. Yamazaki, J. Zmeskal

摘要:

ASACUSA(使用慢反质子的原子光谱和碰撞)合作计划在CERN反质子减速器上测量反氢的基态超精细分裂,初始相对精度为10-6或更高,以测试物质和反物质之间的基本CPT(电荷共轭,宇称变换和时间反转的组合)对称性。这个具有挑战性的目标需要一个极化的反氢束,其中有足够数量的反氢原子处于基态。本文介绍了在几mT的低磁场环境中对反氢原子量子态分布的首次测量。此外,数据驱动的机器学习分析,以确定反氢事件进行了讨论。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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