Chronology of Milestone Events in Particle Physics - CHADWICK 1981
Chronology of Milestone Events in Particle Physics

CHADWICK 1981

CLEO Collaboration; Chadwick, K. et al.
Decay of B-flavored Hadrons to Single-Muon and Dimuon Final States
Phys. Rev. Lett. 46 (1981) 88;

Abstracts
An enhancement in the inclusive cross section for single muons produced in e+ e annihilation at the (4S) is observed, confirming the interpretation that a new bare flavor (B mesons) is produced at the (4S). A branching ratio for B X of (9.4 3.6)% is obtained. The two-muon decay, B X + is not observed, providing a 90%-confidence level upper limit for the branching ratio for that decay of 1.7%. Combining this with our previously reported limit of 5% for B X e+ e, we obtain 1.3% as an upper limit for B X l+ l.

Accelerator CESR Detectors CLEO

Related references
See also
D. Andrews et al., Phys. Rev. Lett. 44 (1980) 1108;
D. Andrews et al., Phys. Rev. Lett. 45 (1980) 219;
G. Finocchiaro et al., Phys. Rev. Lett. 45 (1980) 222;
W. Bacino et al., Phys. Rev. Lett. 45 (1980) 329;
H. Georgi and A. Pais, Phys. Rev. D19 (1979) 2746;
H. Georgi and S. L. Glashow, Nucl. Phys. B167 (1980) 173;
V. Barger and S. Pakvasa, Phys. Lett. 81B (1979) 195;

Reactions
  e+ e ± X 10.55 GeV (Ecm) p, cs
  e+ e e e+ X 10.55 GeV (Ecm) cs
  e+ e + X 10.55 GeV (Ecm) cs
  e+ e (4S) 10.55 GeV (Ecm)
  (4S) B(unspec) (unspec)
  B(unspec) X
  B(unspec) + X
  B(unspec) e e+ X

Particles studied
  (4S) dec, pw
  B(unspec) ex, dec, pw

Record comments
Further evidence of the B-flavored meson.
    
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