Journal article
Experimental considerations for testing antimatter antigravity using positronium 1S-2S spectroscopy
- Crivelli, P. Institute for Particle Physics, ETH Zurich, Otto-Stern-Weg 5, 8093 Zurich, Switzerland
- Cooke, D. A. Institute for Particle Physics, ETH Zurich, Otto-Stern-Weg 5, 8093 Zurich, Switzerland
- Friedreich, S. Institute for Particle Physics, ETH Zurich, Otto-Stern-Weg 5, 8093 Zurich, Switzerland
- 2014-5-8
Published in:
- International Journal of Modern Physics: Conference Series. - World Scientific Pub Co Pte Lt. - 2014, vol. 30, p. 1460257
English
In this contribution to the WAG 2013 workshop we report on the status of our measurement of the 1S-2S transition frequency of positronium. The aim of this experiment is to reach a precision of 0.5 ppb in order to cross check the QED calculations. After reviewing the current available sources of Ps, we consider laser cooling as a route to push the precision in the measurement down to 0.1 ppb. If such an uncertainty could be achieved, this would be sensitive to the gravitational redshift and therefore be able to assess the sign of gravity for antimatter.
- Language
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- English
- Open access status
- closed
- Identifiers
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- DOI 10.1142/s2010194514602579
- ISSN 2010-1945
- Persistent URL
- https://sonar.ch/global/documents/63993
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