Spectrometry of Captured Highly Charged Ions Produced Following Antiproton Annihilations

2025/10/09 by Gustafsson, F. P., Volponi, M., Zielinski, J. +61
#Atomic Physics (physics.atom-ph) #FOS: Physical sciences #Nuclear Experiment (nucl-ex)

paper · doi:10.48550/arxiv.2510.08440

Abstract

We report a proof-of-principle study demonstrating the first capture and time-of-flight spectrometry of highly charged ions (HCIs) produced following antiproton annihilations in a Penning-Malmberg trap. A multi-step nested-trap technique was developed using the \aegis experiment to identify annihilation-linked captured ions. The trapping and spectrometry of helium and argon ions demonstrates the approach. This work establishes a foundation for the in-trap synthesis of radioactive HCIs and the study of cold nuclear annihilation fragments, with the long-term goal of enabling a sensitive tool for probing the outer nuclear periphery.

Citations

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Related

• Half-life Measurements of Highly Charged Radioisotopes by Nuclear Recoil in a Penning Trap
• First Observation of Antiproton Annihilation At Rest on Argon in the LArIAT Experiment
• Annihilation Vertex Reconstruction Algorithm with Single-Layer Timepix4 Detectors
• Production of hypernuclei from antiproton capture within a relativistic transport model
• Towards metrology with highly charged isomeric ions from antiproton annihilation