Increased Sensitivity to Possible Muonium to Antimuonium Conversion
V. Meyer(1), A. Grossmann(1), K. Jungmann(1), J. Merkel(1), G. zu, Putlitz(1), I. Reinhard(1), K. Tr\"ager(1), P.V. Schmidt(1), L. Willmann(1),, R . Engfer(2), H.P. Wirtz(2), R. Abela(3), W. Bertl(3), D. Renker(3), H.K., Walter(3), V. Karpuchin(4), I. Kisel(4), A. Korenchenko(4)
TL;DR
This paper reports a new experimental search for muonium to antimuonium conversion, setting a stringent upper limit on the conversion probability, which constrains theories predicting such phenomena.
Contribution
It presents the first experimental limit on muonium-antimuonium conversion probability in a 0.1 T magnetic field, improving previous bounds.
Findings
Observed one candidate event with an expected background of 1.7(2) events.
Set an upper limit for the conversion probability at 8 x 10^{-11} (90% CL).
Provides constraints on new physics models predicting muonium-antimuonium conversion.
Abstract
A new experimental search for muonium-antimuonium conversion was conducted at the Paul Scherrer Institute, Villigen, Switzerland. The preliminary analysis yielded one event fulfilling all required criteria at an expected background of 1.7(2) events due to accidental coincidences. An upper limit for the conversion probability in 0.1 T magnetic field is extracted as (90% CL).
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.