Author: Khatri, G.
Paper Title Page
WEPOTK031 Low-Energy Negative Ion Injection Beamline for Experiments with Antiprotonic Atoms at AEgIS 2126
 
  • V. Rodin, A. Farricker, C.P. Welsch
    The University of Liverpool, Liverpool, United Kingdom
  • G. Cerchiari
    Institut für Experimentalphysik, Universtität Innsbruck, Innsbruck, Austria
  • M. Doser, G. Khatri
    CERN, Meyrin, Switzerland
  • G. Kornakov
    Warsaw University of Technology, Warsaw, Poland
  • C.P. Welsch
    Cockcroft Institute, Warrington, Cheshire, United Kingdom
 
  Funding: Research was funded by Warsaw University of Technology within the Excellence Initiative: Research University (IDUB) programme
Interaction of low-energy antiprotons with nuclear targets provided fundamental knowledge about proton and neutron densities of many nuclei through the capture process, cascade on lower electron orbits, and annihilation with the nucleon. The expelled electrons produce X-rays and with the recoil particles after annihilation, thus, a sufficient amount of information can be obtained about this interaction. However, all previous experiments were done via formation of antiprotonic atoms in solid or gaseous targets. Therefore, annihilation occurs prior reaching the S or P orbital levels and precise measurements are missing. Recently, AEgIS collaboration proposed a conceptually new experimental scheme. The creation of cold antiprotonic atoms in a vacuum guarantees the absence of the Stark effect. And with the sub-ns timing and synchronization, the previous experimental obstacles would be resolved. This will allow studying atomic properties, evolution, and fragmentation process with improved precision and extended lifetimes. In this contribution, we present an overview of the experimental scheme as well as various aspects of negative ion injection beamline into the AEgIS experiment.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2022-WEPOTK031  
About • Received ※ 08 June 2022 — Accepted ※ 10 June 2022 — Issue date ※ 13 June 2022  
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