activity
20182024
most citedHyperfine spectroscopy of hydrogen and antihydrogen in ASACUSA

21 citations · 41 across the 12 of their papers we have counts for

collaborators

13 papers

physics.acc-ph2024

Injection and capture of antiprotons in a Penning-Malmberg trap using a drift tube accelerator and degrader foil

C. Amsler, H. Breuker, M. Bumbar +33

The Antiproton Decelerator (AD) at CERN provides antiproton bunches with a kinetic energy of 5.3 MeV. The Extra-Low ENergy Antiproton ring at CERN, commissioned at the AD in 2018,…

physics.atom-ph2023

Upgrade of the positron system of the ASACUSA-Cusp experiment

A. Lanz, C. Amsler, H. Breuker +35

The ASACUSA-Cusp collaboration has recently upgraded the positron system to improve the production of antihydrogen. Previously, the experiment suffered from contamination of the va…

physics.plasm-ph2023

Slow positron production and storage for the ASACUSA-Cusp experiment

D. J. Murtagh, C. Amsler, H. Breuker +35

The ASACUSA Cusp experiment requires the production of dense positron plasmas with a high repetition rate to produce a beam of antihydrogen. In this work, details of the positron p…

physics.plasm-ph2023

SDR, EVC, and SDREVC: Limitations and Extensions

E. D. Hunter, C. Amsler, H. Breuker +34

Methods for reducing the radius, temperature, and space charge of nonneutral plasma are usually reported for conditions which approximate an ideal Penning Malmberg trap. Here we sh…

physics.ins-det2022

Upgrade of ASACUSA's Antihydrogen Detector

V. Kraxberger, C. Amsler, H. Breuker +35

The goal of the ASACUSA (Atomic Spectroscopy And Collisions Using Slow Antiprotons) CUSP experiment at CERN's Antiproton Decelerator is to measure the ground state hyperfine splitt…

physics.plasm-ph2022

Cyclotron cooling to cryogenic temperature in a Penning-Malmberg trap with a large solid angle acceptance

C. Amsler, H. Breuker, S. Chesnevskaya +35

Magnetized nonneutral plasma composed of electrons or positrons couples to the local microwave environment via cyclotron radiation. The equilibrium plasma temperature depends on th…