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Phys. Rev. Lett. 75, 3068–3072 (1995)

Measurement of the Polarization in the Decays BdJ/ψ K*0 and BsJ/ψ φ

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F. Abe et al. (CDF Collaboration)
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Received 9 August 1995; published in the issue dated 23 October 1995

This Letter reports on measurements of the longitudinal polarization fractions in the decays BdJ/ψK*0 and BsJ/ψφ using data collected with the Collider Detector at Fermilab. Bd mesons are reconstructed through the decay chain BdJ/ψK*0, J/ψμ+μ-, K*0K+π-. A sample of 65±10Bd events is used to obtain a longitudinal polarization fraction of γL/γ = 0.65±0.10(stat)±0.04(syst). Bs mesons are reconstructed through the decay chain BsJ/ψφ, J/ψμ+μ-, φK+K-. A sample of 19±5Bs events is used to obtain the result γL/γ = 0.56±0.21(stat)-0.04+0.02(syst).

© 1995 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.75.3068
DOI:
10.1103/PhysRevLett.75.3068
PACS:
13.25.Hw, 13.88.+e