Measurement of the D+s-->ηl+ν and D+s-->η'l+ν branching ratios
Abstract
Using the CLEO II detector we measure B(D+s-->ηe+ν)/B(D+s-->φe+ν) =1.24+/-0.12+/-0.15, B(D+s-->η'e+ν)/B (D+s-->φe+ν)=0.43+/-0.11+/-0.07, and B(D+s-->η'e+ν)/B (D+s-->ηe+ν)=0.35+/-0.09+/-0.07. We find the ratio of vector to pseudoscalar final states, B(D+s-->φe+ν)/B (D+s-->(η+η')e+ν)=0.60+/-0.06+/-0.06, which is similar to the ratio found in nonstrange D decays.
- Publication:
-
Physical Review Letters
- Pub Date:
- November 1995
- DOI:
- 10.1103/PhysRevLett.75.3804
- arXiv:
- arXiv:hep-ex/9508009
- Bibcode:
- 1995PhRvL..75.3804B
- Keywords:
-
- 13.20.Fc;
- 13.65.+i;
- 14.40.Lb;
- Decays of charmed mesons;
- Charmed mesons;
- High Energy Physics - Experiment
- E-Print:
- 11 page uuencoded postscript file, postscript file also available through http://w4.lns.cornell.edu/public/CLNS