Phys. Rev. Lett. 76, 2015–2020 (1996)

Reconstruction of B⁰→J/ψK_S⁰ and Measurement of Ratios of Branching Ratios Involving B→J/ψK^* and B⁺→J/ψK⁺

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F. Abe et al. (CDF Collaboration)
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Received 15 November 1995; published in the issue dated 18 March 1996

We report on the reconstruction of the decay mode B⁰→J/ψK_S⁰ using 19.3pb^-1 of data collected by the Collider Detector at Fermilab in p̅ p collisions at √s = 1.8TeV. A signal of 41.8±6.9 events, with a signal-to-background ratio of 9:1, is observed. Three additional decay modes B⁺→J/ψK⁺, B⁰→J/ψK^*(892)⁰, and B⁺→J/ψK^*(892)⁺ are reconstructed. We measure three ratios of branching ratios, each one relative to the B⁺→J/ψK⁺ mode. We also report the ratio of decay rates, γ(B→J/ψK^*)/γ(B→J/ψK), for the vector-vector relative to the vector-pseudoscalar modes, to be 1.32±0.23(stat)±0.16(syst).

URL:

http://link.aps.org/doi/10.1103/PhysRevLett.76.2015

DOI:

10.1103/PhysRevLett.76.2015

PACS:

13.25.Hw, 13.85.Ni, 14.40.Nd

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Phys. Rev. Lett. 76, 2015–2020 (1996)

Reconstruction of B0→J/ψKS0 and Measurement of Ratios of Branching Ratios Involving B→J/ψK* and B+→J/ψK+

Reconstruction of B⁰→J/ψK_S⁰ and Measurement of Ratios of Branching Ratios Involving B→J/ψK^* and B⁺→J/ψK⁺