This paper introduces a new approach to measure the muon magnetic moment anomaly
and the muon electric dipole moment (EDM) at the J-PARC muon facility. The goal of our …

At the Japan Proton Accelerator Research Complex (J-PARC), a pulsed spallation neutron
source provides neutrons with high intensity and narrow pulse width pulse to promote …

A muon facility—EMuS (Experimental Muon Source)—at China Spallation Neutron Source
(CSNS) has been studied since 2007. CSNS, which is designed to deliver a proton beam …

To test bound-state quantum electrodynamics (BSQED) in the strong-field regime, we have
performed high precision x-ray spectroscopy of the 5 g–4 f and 5 f–4 d transitions (BSQED …

A hydrogen-like atom consisting of a positive muon and an electron is known as muonium. It
is a near-ideal two-body system for a precision test of bound-state theory and fundamental …

We observed electronic K x rays emitted from muonic iron atoms using superconducting
transition-edge sensor microcalorimeters. The energy resolution of 5.2 eV in FWHM allowed …

As a method to determine the resonance frequency, Rabi-oscillation spectroscopy has been
developed. In contrast to conventional spectroscopy which draws the resonance curve, Rabi …

Abstract OGATA Koan (1810–63) was a physician and the director of Tekijuku, and he
contributed to Western medicine in the late Edo period. Osaka University preserves two of …

Muonic helium atom hyperfine structure (HFS) measurements are a sensitive tool to test the
three-body atomic system and bound-state quantum electrodynamics theory, and determine …

Elemental analysis based on muonic X-rays resulting from muon irradiation provides
information about bulk material composition without causing damage, which is essential in …