The Mirror World of Antiatoms and Antimolecules

Sunday, February 17, 2013: 1:30 PM-4:30 PM
Room 309 (Hynes Convention Center)
The year 2013 marks the 80th anniversary of the discovery of the positron, i.e., the antiparticle of the electron. The positron was first predicted by Paul Dirac's theory of the electron, which is arguably the simplest possible theory consistent with both quantum mechanics and the theory of relativity. It suggests a mirror world of the one we know -- a world in which every particle has an antiparticle. This concept is truly an astonishing idea for which there was initially no experimental evidence. Yet the discovery of the positron, and subsequent discoveries of other antiparticles, indicates that we are indeed embedded in such a world. One of the towering mysteries is why we do not see antimatter all around us -- or to be more precise, why there seem to be no large domains of antimatter in the universe. The supposed perfect symmetry between matter and antimatter should have resulted in equal quantities of each being produced at the Big Bang. Perhaps there are indeed large reserves of antimatter out there that we just have not seen yet.  This symposium will discuss the most recent searches and the paths to further investigation. Or perhaps the matter/antimatter symmetry is not quite so perfect after all? Within the past two years, the most precise experimental tests have been made of this postulate. Hybrid systems -- molecules made of particles and antiparticles -- are also now in view.
Charles W. Clark, Joint Quantum Institute
Michael J. Brunger, Flinders University
Michael J. Brunger, Flinders University
Eun-suk Seo, University of Maryland
Searching the Cosmos for Antiparticle
Michael Charlton, Swansea University
Resonant Quantum Transitions in Trapped Antihydrogen Atoms
Eric A. Hessels, York University
Trapped Antihydrogen in Its Ground State
David Cassidy, University of California
Positronium and Its Molecules
Masaki Hori, Max Planck Institute for Quantum Optics
Laser Spectroscopy of Antiprotonic Helium
See more of: Physical Sciences
See more of: Symposia