Development of a cold atomic muonium beam for next generation atomic physics and gravity experiments

Soter, Anna; Knecht, Andreas

doi:10.21468/SciPostPhysProc.5.031

SciPost Physics Proceedings

Development of a cold atomic muonium beam for next generation atomic physics and gravity experiments

Anna Soter, Andreas Knecht

SciPost Phys. Proc. 5, 031 (2021) · published 6 September 2021

doi: 10.21468/SciPostPhysProc.5.031
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Review of Particle Physics at PSI

Abstract

A high-intensity, low-emittance atomic muonium (M) beam is being developed, which would enable improving the precision of M spectroscopy measurements, and may allow a direct observation of the M gravitational interaction. Measuring the free fall of M atoms would be the first test of the weak equivalence principle using elementary antimatter ($\mu^+$) and a purely leptonic system. Such an experiment relies on the high intensity, continuous muon beams available at the Paul Scherrer Institute (PSI, Switzerland), and a proposed novel M source. In this paper, the theoretical motivation and principles of this experiment are described.

TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhysProc.5.031
TI  - Development of a cold atomic muonium beam for next generation atomic physics and gravity experiments
PY  - 2021/09/06
UR  - https://www.scipost.org/SciPostPhysProc.5.031
JF  - SciPost Physics Proceedings
JA  - SciPost Phys. Proc.
VL  - 
IS  - 5
SP  - 031
A1  - Soter, Anna
AU  - Knecht, Andreas
AB  - A high-intensity, low-emittance atomic muonium (M) beam is being developed, which would enable improving the precision of M spectroscopy measurements, and may allow a direct observation of the M gravitational interaction. Measuring the free fall of M atoms would be the first test of the weak equivalence principle using elementary antimatter ($\mu^+$) and a purely leptonic system. Such an experiment relies on the high intensity, continuous muon beams available at the Paul Scherrer Institute (PSI, Switzerland), and a proposed novel M source. In this paper, the theoretical motivation and principles of this experiment are described.
ER  -

@Article{10.21468/SciPostPhysProc.5.031,
	title={{Development of a cold atomic muonium beam for next generation atomic physics and gravity experiments}},
	author={Anna Soter and  Andreas Knecht},
	journal={SciPost Phys. Proc.},
	pages={031},
	year={2021},
	publisher={SciPost},
	doi={10.21468/SciPostPhysProc.5.031},
	url={https://scipost.org/10.21468/SciPostPhysProc.5.031},
}

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¹ Anna Soter,
² Andreas Knecht