Cold-Antimatter Physics
Abstract
The CPT theorem and the Weak Equivalence Principle are foundational principles on which the standard description of the fundamental interactions is based. The validity of such basic principles should be tested using the largest possible sample of physical systems. Cold neutral antimatter (low-energy antihydrogen atoms) could be a tool for testing the CPT symmetry with high precision and for a direct measurement of the gravitational acceleration of antimatter. After several years of experimental efforts, the production of low-energy antihydrogen through the recombination of antiprotons and positrons is a well-established experimental reality. An overview of the ATHENA experiment at CERN will be given and the main experimental results on antihydrogen formation will be reviewed.
Cite
@article{arxiv.hep-ex/0503034,
title = {Cold-Antimatter Physics},
author = {ATHENA Collaboration and M. Amoretti and C. Amsler and G. Bonomi and P. D. Bowe and C. Canali and C. Carraro and C. L. Cesar and M. Charlton and M. Doser and A. Fontana and M. C. Fujiwara and R. Funakoshi and P. Genova and J. S. Hangst and R. S. Hayano and I. Johnson 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 H. Pruys and C. Regenfus and A. Rotondi and G. Testera and A. Variola and L. Venturelli and D. P. van der Werf and Y. Yamazaki and N. Zurlo},
journal= {arXiv preprint arXiv:hep-ex/0503034},
year = {2010}
}
Comments
Proceedings of the XLIII International Meeting on Nuclear Physics, Bormio (Italy), March 13-20 (2005). 10 pages, 4 figures, 1 table