Precision atomic experiments on antiprotons by the ASACUSA collaboration

by M. Hori (CERN-EP)

Monday 28 Oct 2002, 16:30 → 17:30 Europe/Zurich

500/1-001 - Main Auditorium (CERN)

The ASACUSA collaboration at CERN has recently made various types of atomic experiments to explore the properties of antiprotons (namely their mass, charge and magnetic moment) with very high precision, and to study their interactions with ordinary matter. I will first provide a historical overview of our research programme, part of which started 12 years ago in KEK, Japan with the discovery of a special kind of helium atom containing an antiproton. The latest results of laser spectroscopy measurements on this atom made at the Antiproton Decelerator will then be described. In preparation for the next phase of our project, an ultra-low energy antiproton beam is being developed using a radiofrequency quadrupole decelerator and a magnetic Penning trap. In the future, atomic collisions of antiprotons will be studied, many types of atoms containing antiprotons will be produced and laser spectroscopy of these atoms will be made.

Organiser(s): C. Amelung / EP Division

Note: Tea & coffee will be served at 16.00 hrs.