Journal article
New upper limit on the decay η→e+e-
- Abstract:
- We have searched for the rare decay of the η meson η→e+e- using the CLEO II detector. The η's were produced in e+e- collisions with 10 GeV center-of-mass energy at the Cornell Electron Storage Ring (CESR). We find with 90% confidence the upper limit on the branching fraction B(η→e+e-) < 7.7 × 10-5. The application of conventional elementary particle theory to this decay predicts a branching fraction of about 10-9.
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Authors
- Journal:
- Physical Review D More from this journal
- Volume:
- 56
- Issue:
- 9
- Pages:
- 5359-5365
- Publication date:
- 1997-11-01
- DOI:
- EISSN:
-
1089-4918
- ISSN:
-
0556-2821
- Language:
-
English
- Pubs id:
-
pubs:321874
- UUID:
-
uuid:d9593628-6de4-4976-b2bf-0e8b58b3450a
- Local pid:
-
pubs:321874
- Source identifiers:
-
321874
- Deposit date:
-
2013-11-17
Terms of use
- Copyright date:
- 1997
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