Measured Properties of an Antihydrogen Beam
Instrumentation and Detectors
2025-09-04 v1 High Energy Physics - Experiment
Plasma Physics
Abstract
We report a factor of increase in the antihydrogen beam intensity downstream of ASACUSA's Cusp trap: atoms detected per -minute run. The beam contains many Rydberg atoms, which we selectively ionize to determine their velocity and binding energy. The time of flight signal is modeled using a Maxwellian velocity distribution with a temperature of , which is close to the measured antiproton plasma temperature. A numerical simulation reproduces the observed distribution of binding energies and suggests that about of the atoms may be in the ground state.
Cite
@article{arxiv.2509.02583,
title = {Measured Properties of an Antihydrogen Beam},
author = {E. D. Hunter and M. Bumbar and C. Amsler and M. N. Bayo and H. Breuker and M. Cerwenka and G. Costantini and R. Ferragut and M. Giammarchi and A. Gligorova and G. Gosta and M. Hori and C. Killian and V. Kraxberger and N. Kuroda and A. Lanz and M. Leali and G. Maero and C. Malbrunot and V. Mascagna and Y. Matsuda and S. Migliorati and D. J. Murtagh and M. Romé and R. E. Sheldon and M. C. Simon and M. Tajima and V. Toso and S. Ulmer and L. Venturelli and A. Weiser and E. Widmann},
journal= {arXiv preprint arXiv:2509.02583},
year = {2025}
}