Measurement of the B0 and B+ meson masses from B0-->ψ(') K0S and B+-->ψ(') K+ decays
Abstract
Using a sample of 9.6×106BB¯ meson pairs collected with the CLEO detector, we have fully reconstructed 135 B0-->ψ(') K0S and 526 B+-->ψ(')K+ candidates with very low background. We fitted the ψ(')K invariant mass distributions of these B meson candidates and measured the masses of the neutral and charged B mesons to be M(B0)=5279.1+/-0.7[stat]+/-0.3[ syst] MeV/c2 and M(B+)=5279.1+/-0.4[stat]+/-0.4[ syst] MeV/c2. The precision is a significant improvement over previous measurements.
- Publication:
-
Physical Review D
- Pub Date:
- June 2000
- DOI:
- arXiv:
- arXiv:hep-ex/0001013
- Bibcode:
- 2000PhRvD..61k1101C
- Keywords:
-
- 13.25.Hw;
- 14.40.Nd;
- Decays of bottom mesons;
- Bottom mesons;
- High Energy Physics - Experiment
- E-Print:
- 2 typographic errors corrected