54 citations · 208 across the 8 of their papers we have counts for
6 papers · 1 filter
Line shape analysis of the K transition in muonic hydrogen
D. S. Covita, D. F. Anagnostopoulos, H. Fuhrmann +19
The K transition in muonic hydrogen was measured with a high-resolution crystal spectrometer. The spectrum is shown to be sensitive to the ground-state hyperfine splitting, the…
Measurement of the charged pion mass using a low-density target of light atoms
M Trassinelli, D. F. Anagnostopoulos, G Borchert +10
We present a new evaluation of the negatively charged pion mass based on the simultaneous spec-troscopy of pionic nitrogen and muonic oxygen transitions using a gaseous target comp…
Measurement of the charged pion mass using X-ray spectroscopy of exotic atoms
M Trassinelli, D. F. Anagnostopoulos, G. Borchert +10
The transitions in pionic nitrogen and muonic oxygen were measured simultaneously by using a gaseous nitrogen-oxygen mixture at 1.4\,bar. Due to the precise knowledge of th…
Line shape of the muH(3p - 1s) hyperfine transitions
D. S. Covita, D. F. Anagnostopoulos, H. Gorke +13
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 estab…
On the characterisation of a Bragg spectrometer with X-rays from an ECR source
D. F. Anagnostopoulos, S. Biri, D. Gotta +8
Narrow X-ray lines from helium-like argon emitted from a dedicated ECR source have been used to determine the response function of a Bragg crystal spectrometer equipped with large…
Low-Energy X-Ray Standards from Hydrogenlike Pionic Atoms
Paul Indelicato, Leopold Simons, Detlev Gotta +1
We demonstrate the first step of a complete program, which consists in establishing an x-ray energy standard scale with the use of few-body atoms, in the few keV range. Light pioni…