Speaker
Description
The muonic atom, a bound state of negative muon and nucleus, has a small orbital radius compared to an ordinary atom. Therefore, muonic atoms are a highly sensitive probe for the interaction between muon and nucleus. While the discrepancy between the charge radii of protons measured by several independent methods has received much attention, knowledge of what happens to the Zemach radius has been relatively limited. In particular, the determination of the proton Zemach radius by spectroscopy of the muon hydrogen's hyperfine structure is an exciting attempt to shed light on the "puzzle" from a different angle. At J-PARC MLF MUSE, a laser spectroscopy experiment of muonic hydrogen HFS is under preparation. Understanding various dynamical processes involving muonic atoms is essential in successful spectroscopy. In this talk, We will introduce the preparation status of the experiment and the surrounding topics.
