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Phys. Rev. D 34, 3279 - 3285 (1986)

Study of the decay B→ψX

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M. S. Alam et al.
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Received 2 September 1986

We have measured the inclusive branching ratio for B→ψX to be (1.09±0.16±0.21)%, and the exclusive branching ratios for B-→ψK- and B¯ 0¯ *0 to be (0.09±0.05)% and (0.41±0.18)%, respectively. The mass difference between neutral and charged B mesons is 1.1±2.1 MeV, while the difference between the mass of Υ(4S) and twice the mean B-meson mass is 18.5±3.0 MeV. The ψ momentum distribution implies a substantial two-body decay (in agreement with direct measurements), but also some combination of B→ψX with MX>1.5 GeV, and B→ψ’X.


©1986 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevD.34.3279
DOI: 10.1103/PhysRevD.34.3279
PACS: 13.25.+m, 13.40.Dk, 14.40.Jz

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