Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2010-07-06
J. Phys.: Conf. Ser. 199 (2010) 012002
Physics
High Energy Physics
High Energy Physics - Experiment
6 pages, 6 figures, Proceedings of POSMOL 2009
Scientific paper
10.1088/1742-6596/199/1/012002
Positronium is an ideal system for the research of the bound state QED. The hyperfine splitting of positronium (Ps-HFS: about 203 GHz) is sensitive to new physics beyond the Standard Model via a vacuum oscillation between an ortho-Ps and a virtual photon. Previous experimental results of the Ps-HFS show 3.9 sigma(15 ppm) discrepancy from the QED calculation. All previous experiments used an indirect method with static magnetic field to cause Zeeman splitting (a few GHz) between triplet states of ortho-Ps, from which the HFS value was derived. One possible systematic error source of the indirect method is the static magnetic field. We are developing a new direct measurement system of the Ps-HFS without static magnetic field. In this measurement we use a gyrotron, a novel sub-THz light source, with a high-Finesse Fabry-Perot cavity to obtain enough radiation power at 203 GHz. The present status of the optimization studies and current design of the experiment are described.
Asai Shinichiro
Idehara Toshihiro
Ishida Akihiro
Kobayashi Sachio
Kobayashi Tatsuo
No associations
LandOfFree
Probing the Energy Structure of Positronium with a 203 GHz Fabry-Perot Cavity does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Probing the Energy Structure of Positronium with a 203 GHz Fabry-Perot Cavity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Probing the Energy Structure of Positronium with a 203 GHz Fabry-Perot Cavity will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-216376