Abstract
We have studied the production of B mesons in e+e- annihilations and present new measurements of the semileptonic branching fractions for B-meson decay. We find B(B=eX)=0.127±0.017±0.013 and B(B=X)=0.122±0.017±0.031, where the errors are statistical and systematic, respectively. The observed lepton momentum spectra from B decays are presented. From these spectra we find the mean hadronic mass (MX) recoiling against the detected lepton to be MX=2.2±0.2 GeV/c2. We have also observed an enhancement in the lepton yield from the continuum above BB» threshold. This enhancement is interpreted as continuum B production and is consistent with what is expected from the naive quark model.
Original language | English (US) |
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Pages (from-to) | 475-485 |
Number of pages | 11 |
Journal | Physical Review D |
Volume | 27 |
Issue number | 3 |
DOIs | |
State | Published - 1983 |
Externally published | Yes |
ASJC Scopus subject areas
- Nuclear and High Energy Physics