Search for the decays η-->μe and η-->e+e-
Abstract
A search for the lepton-family-violating decay η-->μe and the rare decay η-->e+e- yields the following branching ratio (B) upper limits at a 90% confidence level: B(η-->μe)<6×10-6 and B(η-->e+e-)<2×10-4. This is the first direct search for η-->μe. The measurements were carried out at the SPES2 tagged η facility at Laboratoire National Saturne in the course of a measurement of B(η-->μ+μ-).
- Publication:
-
Physical Review D
- Pub Date:
- June 1996
- DOI:
- 10.1103/PhysRevD.53.6658
- Bibcode:
- 1996PhRvD..53.6658W
- Keywords:
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- 13.20.Jf;
- Decays of other mesons