Hori M, Aghai-Khozani H, Sótér A, Dax A, Barna D. Laser Spectroscopy Measurements of Metastable Pionic Helium Atoms at Paul Scherrer Institute.
FEW-BODY SYSTEMS 2021;
62:63. [PMID:
34720287 PMCID:
PMC8550253 DOI:
10.1007/s00601-021-01630-3]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 06/21/2021] [Indexed: 06/13/2023]
Abstract
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.
Collapse