Phys. Rev. D 39, 3528–3531 (1989)Measurement of the muonic branching fractions of the Υ(1S) and Υ(3S)
Using the CLEO detector at the Cornell Electron Storage Ring, we have measured the muonic branching fractions Bμμ of the Υ(1S) and Υ(3S) to be (2.52±0.07±0.07)% and (2.02±0.19±0.33)%, respectively. © 1989 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.39.3528
DOI:
10.1103/PhysRevD.39.3528
PACS:
13.20.Gd, 14.40.Gx
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