Phys. Rev. D 34, 3279–3285 (1986)Study of the decay B→ψXReceived 2 September 1986; published in the issue dated 1 December 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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