activity
20082023
most citedAtom interferometry based on light pulses : application to the high precision measurement of the ratio h/m and the determination of the fine structure constant

26 citations · 128 across the 9 of their papers we have counts for

collaborators

11 papers

physics.optics2023

A compact 20-pass thin-disk multipass amplifier stable against thermal lensing effects and delivering 330 mJ pulses with

Manuel Zeyen, Lukas Affolter, Marwan Abdou Ahmed +11

We report on an Yb:YAG thin-disk multipass amplifier delivering 50 ns long pulses at a central wavelength of 1030 nm with an energy of 330 mJ at a repetition rate of 100 Hz. The be…

hep-ex2023★ 16 cited

Production of antihydrogen atoms by 6 keV antiprotons through a positronium cloud

P. Adrich, P. Blumer, G. Caratsch +61

We report on the first production of an antihydrogen beam by charge exchange of 6.1 keV antiprotons with a cloud of positronium in the GBAR experiment at CERN. The antiproton beam…

physics.atom-ph2022

Diffusion of muonic hydrogen in hydrogen gas and the measurement of the 1 hyperfine splitting of muonic hydrogen

J. Nuber, A. Adamczak, M. Abdou Ahmed +46

The CREMA collaboration is pursuing a measurement of the ground-state hyperfine splitting (HFS) in muonic hydrogen (p) with 1 ppm accuracy by means of pulsed laser spectroscopy.…

physics.atom-ph2021★ 2 cited

Laser excitation of the 1s-hyperfine transition in muonic hydrogen

P. Amaro, A. Adamczak, M. Abdou Ahmed +43

The CREMA collaboration is pursuing a measurement of the ground-state hyperfine splitting (HFS) in muonic hydrogen (p) with 1 ppm accuracy by means of pulsed laser spectroscopy…

physics.atom-ph2021★ 10 cited

A large octupole magnetic trap for research with atomic hydrogen

J. Ahokas, A. Semakin, J. Järvinen +12

We describe the design and performance of a large magnetic trap for storing and cooling of atomic hydrogen (H). The trap operates in the vacuum space of a dilution refrigerator at…

physics.atom-ph2019★ 21 cited

State of the art in the determination of the fine structure constant and the ratio

Pierre Cladé, François Nez, François Biraben +1

The fine structure constant and the ratio between the Planck constant and the unified atomic mass are keystone constants for the determination of other funda…