This Letter reports on measurements of the longitudinal polarization fractions in the decays B-d --> J/psi K*(0) and B-s --> J/psi phi using data collected with the Collider Detector at Fermilab. B-d mesons are reconstructed through the decay chain B-d --> J/psi K*(0), J/psi --> mu(+)mu(-), K*(0) --> K(+)phi(-). A sample of 65 +/- 10 B-d events is used to obtain a longitudinal polarization fraction of T-L/Gamma = 0.65 +/- 0.10(stat) +/- 0.04(syst). B-s mesons are reconstructed through the decay chain B-s --> J/psi phi, J/psi --> mu(+)mu(-), phi --> K+K-. A sample of 19 +/- 5 B-s events is used to obtain the result Gamma(L)/Gamma = 0.56 +/- 0.21(stat)-(+0.02)(0.04)(syst).

F., A., M. G., A., S. R., A., D., A., J., A., C., A., et al. (1995). Measurement of the Polarization In the Decays B-d-]j/psi-k-(asterisk-0) and Bs-]j/psi-phi. PHYSICAL REVIEW LETTERS, 75(17), 3068-3072 [10.1103/PhysRevLett.75.3068].

Measurement of the Polarization In the Decays B-d-]j/psi-k-(asterisk-0) and Bs-]j/psi-phi

PAOLETTI, RICCARDO;
1995-01-01

Abstract

This Letter reports on measurements of the longitudinal polarization fractions in the decays B-d --> J/psi K*(0) and B-s --> J/psi phi using data collected with the Collider Detector at Fermilab. B-d mesons are reconstructed through the decay chain B-d --> J/psi K*(0), J/psi --> mu(+)mu(-), K*(0) --> K(+)phi(-). A sample of 65 +/- 10 B-d events is used to obtain a longitudinal polarization fraction of T-L/Gamma = 0.65 +/- 0.10(stat) +/- 0.04(syst). B-s mesons are reconstructed through the decay chain B-s --> J/psi phi, J/psi --> mu(+)mu(-), phi --> K+K-. A sample of 19 +/- 5 B-s events is used to obtain the result Gamma(L)/Gamma = 0.56 +/- 0.21(stat)-(+0.02)(0.04)(syst).
1995
F., A., M. G., A., S. R., A., D., A., J., A., C., A., et al. (1995). Measurement of the Polarization In the Decays B-d-]j/psi-k-(asterisk-0) and Bs-]j/psi-phi. PHYSICAL REVIEW LETTERS, 75(17), 3068-3072 [10.1103/PhysRevLett.75.3068].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/39130
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