Line shape of the μ H(3 p - 1 s ) transition

Autor: Covita, D., Anagnostopoulos, D., Gorke, H., Gotta, D., Gruber, A., Hirtl, A., Ishiwatari, T., Indelicato, P., Le Bigot, E., Nekipelov, M., dos Santos, J., Schmid, Ph, Simons, L., Trassinelli, M., Veloso, J., Zmeskal, J.
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Popis: The line shape of the (3p − 1s) X-ray transition in muonic hydrogen was measured for the first time with a high-resolution crystal spectrometer. The assumption of a statistical population of the hyperfine levels was directly confirmed by experiment, and a measured value for the hyperfine splitting is reported. An X-ray line broadening due to Doppler effect could be clearly identified and attributed to different Coulomb de-excitation transitions which precede the measured radiative transition. The results allow a decisive test of advanced cascade model calculations and establish an alternative and "model free” method to extract the strong-interaction parameters from pionic hydrogen data
Databáze: OpenAIRE