Phys. Rev. Lett. 88, 071801 (2002) [6 pages]

Study of B⁰ → J/ψK^(*)0π⁺π^- Decays with the Collider Detector at Fermilab

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T. Affolder et al. (CDF Collaboration)
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Received 31 July 2001; published 30 January 2002

We report a study of the decays B⁰→J/ψK^(*)0π⁺π^-, which involve the creation of a uu̅ or dd̅ quark pair in addition to a b̅ →c̅ (cs̅ ) decay. The data sample consists of 110 pb^-1 of pp̅ collisions at sqrt[s] = 1.8 TeV collected by the CDF detector at the Fermilab Tevatron collider during 1992–1995. We measure the branching fractions to be B(B⁰→J/ψK^*0π⁺π^-) = (6.6±1.9±1.1)×10^-4 and B(B⁰→J/ψK⁰π⁺π^-) = (10.3±3.3±1.5)×10^-4. Evidence is seen for contributions from ψ(2S)K^(*)0, J/ψK⁰ρ⁰, J/ψK^*+π^-, and J/ψK₁(1270).

URL: http://link.aps.org/doi/10.1103/PhysRevLett.88.071801
DOI: 10.1103/PhysRevLett.88.071801
PACS: 13.25.Hw, 14.40.Nd

^* Present address: Northwestern University, Evanston, IL 60208.
^† Present address: University of California, Santa Barbara, CA 93106.
^‡ Present address: Carnegie Mellon University, Pittsburgh, PA 15213.
^§

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