Measurement of the branching ratio of the decay K0L-->μμ
Abstract
We observed 117.8 K0L-->μμ events after background subtraction of 1.2 events in an experiment to search for the deays K0L-->μe and ee at the KEK 12-GeV Proton Synchrotron. Normalizing to the decay K0L-->π+π-, the branching ratio B(K0L-->μμ)=[7.9+/-0.6(stat)+/-0.3 (syste)]×10-9 was obtained.
- Publication:
-
Physical Review Letters
- Pub Date:
- November 1991
- DOI:
- 10.1103/PhysRevLett.67.2618
- Bibcode:
- 1991PhRvL..67.2618A
- Keywords:
-
- 13.20.Eb;
- Decays of K mesons