Production of Slow Protonium in Vacuum
High Energy Physics - Experiment
2010-01-28 v1
Abstract
We describe how protonium, the quasi-stable antiproton-proton bound system, has been synthesized following the interaction of antiprotons with the molecular ion H in a nested Penning trap environment. From a careful analysis of the spatial distributions of antiproton annihilation events in the ATHENA experiment, evidence is presented for protonium production with sub-eV kinetic energies in states around = 70, with low angular momenta. This work provides a new 2-body system for study using laser spectroscopic techniques.
Cite
@article{arxiv.0801.3193,
title = {Production of Slow Protonium in Vacuum},
author = {N. Zurlo and M. Amoretti and C. Amsler and G. Bonomi and C. Carraro and C. L. Cesar and M. Charlton and M. Doser and A. Fontana and R. Funakoshi and P. Genova and R. S. Hayano and L. V. Jorgensen and A. Kellerbauer and V. Lagomarsino and R. Landua and E. Lodi Rizzini and M. Macri' and N. Madsen and G. Manuzio and D. Mitchard and P. Montagna and L. G. Posada and H. Pruys and C. Regenfus and A. Rotondi and G. Testera and D. P. Van der Werf and A. Variola and L. Venturelli and Y. Yamazaki},
journal= {arXiv preprint arXiv:0801.3193},
year = {2010}
}
Comments
9 pages with 5 figures and 1 table. Proceedings of the 4th International Conference on Trapped Charged Particles and Fundamental Physics (TCP 06), published in Hyperfine Interactions