Line shape of the muH(3p - 1s) hyperfine transitions

Abstract

The (3p - 1s) X-ray transition to the muonic hydrogen ground state was measured with a high resolution crystal spectrometer. A Doppler effect broadening of the X-ray line was established which could be attributed to different Coulomb de-excitation steps preceding the measured transition. The assumption of a statistical population of the hyperfine levels of the muonic hydrogen ground state was directly confirmed by the experiment and measured values for the hyperfine splitting can be reported. The results allow a decisive test of advanced cascade model calculations and establish a method to extract fundamental strong-interaction parameters from pionic hydrogen experiments.

Submitted to Physical Review Letters

References in corpus (9)

• Induced pseudoscalar coupling of the proton weak interaction
• Measurement of the Rate of Muon Capture in Hydrogen Gas and Determination of the Proton's Pseudoscalar Coupling $g_P$
• Collisional deexcitation of exotic hydrogen atoms in highly excited states. II. Cascade calculations
• Observation of Long-Lived Muonic Hydrogen in the 2S State
• On the characterisation of a Bragg spectrometer with X-rays from an ECR source
• Muonic hydrogen ground state hyperfine splitting
• Collisional deexcitation of exotic hydrogen atoms in highly excited states. I. Cross-sections
• Coulomb deexcitation of pionic hydrogen within close-coupling method
• Angular distributions of scattered excited muonic hydrogen atoms

Cited by in corpus (5)

• Pionic deuterium
• Hadronic shift in pionic hydrogen
• Precision determination of the dpi -> NN transition strength at threshold
• The isotopic effects in the scattering and the kinetics of the atomic cascade
• Line shape analysis of the K$\beta$ transition in muonic hydrogen