保罗·谢尔研究所对亚稳态π介子氦原子的激光光谱测量。

Hori M, Aghai-Khozani H, Sótér A, Dax A, Barna D

Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, D-85748 Garching, Germany.

Present Address: McKinsey and Company, Munich, Germany.

Few Body Syst. 2021;62(3):63. doi: 10.1007/s00601-021-01630-3. Epub 2021 Jul 29.

We review recent experiments carried out by the PiHe collaboration of the Paul Scherrer Institute (PSI) that observed an infrared transition of three-body pionic helium atoms by laser spectroscopy. These measurements may lead to a precise determination of the charged pion mass, and complement experiments of antiprotonic helium atoms carried out at the new ELENA facility of CERN.

我们回顾了保罗·谢尔研究所（PSI）的PiHe合作团队近期开展的实验，该实验通过激光光谱法观测到了三体π介子氦原子的红外跃迁。这些测量可能会精确测定带电π介子的质量，并补充在欧洲核子研究组织（CERN）新的ELENA设施上进行的反质子氦原子实验。