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Measurement of the Decay Amplitude of B0 --> J/psi K*0 and B0(s) -> j/psi phi Decays

Lancaster, M; Waters, DCDFC; (2000) Measurement of the Decay Amplitude of B0 --> J/psi K*0 and B0(s) -> j/psi phi Decays. Physical Review Letters , 85 (22) , Article 4668. 10.1103/PhysRevLett.85.4668. Green open access

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Abstract

An angular analysis of B0→J/ψK*0 and Bs0→J/ψφ has been used to determine the decay amplitudes with parity-even longitudinal ( A0) and transverse ( A∥) polarization and parity-odd transverse ( A⊥) polarization. The measurements are based on 190 B0 and 40 Bs0 candidates obtained from 89pb-1 of p̅ p collisions at the Fermilab Tevatron. The longitudinal decay amplitude dominates with |A0|2 = 0.59±0.06±0.01 for B0 and |A0|2 = 0.61±0.14±0.02 for Bs0 decays. The parity-odd amplitude is found to be small with |A⊥|2 = 0.13-0.09+0.12±0.06 for B0 and |A⊥|2 = 0.23±0.19±0.04 for Bs0 decays.

Type: Article
Title: Measurement of the Decay Amplitude of B0 --> J/psi K*0 and B0(s) -> j/psi phi Decays
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.85.4668
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.85.4668
Language: English
Additional information: © 2000 The American Physical Society
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/131932
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