3rd International Workshop on Antimatter and Gravity (WAG 2015)

Session

Session D

6 Aug 2015, 09:00

UCL

9. Positronium laser excitation and its detection in the AEgIS experiment

Zeudi Mazzotta (Università degli Studi e INFN Milano (IT))

06/08/2015, 09:00

Invited Talk

The AEgIS experimental program on antimatter systems involves the formation of antihydrogen atoms for gravitational and CPT studies. One of the key ingredients of the AEgIS strategy for the synthesis of antihydrogen atoms is the creation and manipulation of Positronium (Ps) atoms laser excited in Rydberg states ($n>15$). Ps is very interesting in its own right. Ps is indeed a truly...

14. High precision spectroscopy of Ps.

David Cooke (Eth Zurich)

06/08/2015, 09:30

Invited Talk

Positronium is an excellent test-bed for bound-state QED, owing to its purely leptonic nature. This allows its properties to be calculated very precisely in terms of the fine structure constant, with no contributions from hadronic interactions (weak interactions can also be neglected at the present experimental level). In addition to probing QED, a sufficiently precise measurement of the 1S-2S...

31. Rydberg-Stark states of positronium

Adam Deller (University College London)

06/08/2015, 10:00

Invited Talk

Recent advances in positron trapping techniques, positron to positronium (Ps) converter materials, and commercially available pulsed laser sources has greatly simplified the generation of Rydberg states of Ps. Highly-excited states of this exotic atom are listed in several schemes being developed for synthesis of anti-hydrogen for (anti)gravity measurements. In contrast to its...