activity
20042026
most citedAntiproton magnetic moment determined from the HFS of antiprotonic helium

50 citations · 137 across the 6 of their papers we have counts for

collaborators

6 papers

physics.acc-ph2026

High-Power Polarization-Controlled Attosecond-Scale Soft X-ray Pulses

Zhaoheng Guo, Carlo Vicario, Andre Al Haddad +18

We demonstrate a versatile platform for high-power attosecond soft X-ray pulse generation with polarization and photon energy control at the SwissFEL free-electron laser. An isolat…

physics.atom-ph2013★ 11 cited

Microwave spectroscopic study of the hyperfine structure of antiprotonic helium-3

Susanne Friedreich, Daniel Barna, Fritz Caspers +11

In this work we describe the latest results for the measurements of the hyperfine structure of antiprotonic helium-3. Two out of four measurable super-super-hyperfine SSHF transiti…

physics.atom-ph2011★ 12 cited

First observation of two hyperfine transitions in antiprotonic He-3

S. Friedreich, D. Barna, F. Caspers +11

We report on the first experimental results for microwave spectroscopy of the hyperfine structure of antiprotonic He-3. Due to the helium nuclear spin, antiprotonic He-3 has a more…

physics.atom-ph2009★ 50 cited

Antiproton magnetic moment determined from the HFS of antiprotonic helium

T. Pask, D. Barna, A. Dax +9

We report a determination of the antiproton magnetic moment, measured in a three-body system, independent of previous experiments. We present results from a systematic study of the…

physics.atom-ph2006★ 20 cited

Muonic hydrogen cascade time and lifetime of the short-lived state

L. Ludhova, F. D. Amaro, A. Antognini +24

Metastable muonic-hydrogen atoms undergo collisional -quenching, with rates which depend strongly on whether the kinetic energy is above or below the ${2S}\to {2P…

physics.ins-det2004★ 44 cited

Planar LAAPDs: Temperature Dependence, Performance, and Application in Low Energy X-ray Spectroscopy

L. Ludhova, F. D. Amaro, A. Antognini +25

An experiment measuring the 2S Lamb shift in muonic hydrogen mup is being performed at the Paul Scherrer Institute, Switzerland. It requires small and compact detectors for 1.9 keV…