An angular analysis of B-0 --> J/psi K*(0) and B-s(0) --> J/psi phi has been used to determine the decay amplitudes with parity-even longitudinal (A(0)) and transverse (A( )) polarization and parity-odd transverse (A1(-)) polarization. The measurements are based on 190 B-0 and 40 B-s(0) candidates obtained from 89 pb(-1) of (p) over barp collisions at the Fermilab Tevatron. The longitudinal decay amplitude dominates with A(0)(2) = 0.59 +/- 0.06 +/- 0.01 for B-0 and A(0) (2) = 0.61 +/- 0.14 +/- 0.02 for B-s(0) decays. The parity-odd amplitude is found to be small with A1(-)(2) = 0.13(-0.09)(+0.12) +/- 0.06 for B-0 and A1(-) = 0.23 +/- 0.19 +/- 0.04 for B-s(0) decays.

T., A., H., A., A., A., M. G., A., P., A., S. R., A., et al. (2000). Measurement of the decay amplitudes of B-0 -> J/psi K*(0) and B-S(0) -> J/psi phi decays. PHYSICAL REVIEW LETTERS, 85(22), 4668-4673 [10.1103/PhysRevLett.85.4668].

Measurement of the decay amplitudes of B-0 -> J/psi K*(0) and B-S(0) -> J/psi phi decays

PAOLETTI, RICCARDO;
2000-01-01

Abstract

An angular analysis of B-0 --> J/psi K*(0) and B-s(0) --> J/psi phi has been used to determine the decay amplitudes with parity-even longitudinal (A(0)) and transverse (A( )) polarization and parity-odd transverse (A1(-)) polarization. The measurements are based on 190 B-0 and 40 B-s(0) candidates obtained from 89 pb(-1) of (p) over barp collisions at the Fermilab Tevatron. The longitudinal decay amplitude dominates with A(0)(2) = 0.59 +/- 0.06 +/- 0.01 for B-0 and A(0) (2) = 0.61 +/- 0.14 +/- 0.02 for B-s(0) decays. The parity-odd amplitude is found to be small with A1(-)(2) = 0.13(-0.09)(+0.12) +/- 0.06 for B-0 and A1(-) = 0.23 +/- 0.19 +/- 0.04 for B-s(0) decays.
2000
T., A., H., A., A., A., M. G., A., P., A., S. R., A., et al. (2000). Measurement of the decay amplitudes of B-0 -> J/psi K*(0) and B-S(0) -> J/psi phi decays. PHYSICAL REVIEW LETTERS, 85(22), 4668-4673 [10.1103/PhysRevLett.85.4668].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/39890
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