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Measurement of the Decay Amplitudes of B0→J/ψK*0 and Bs0→J/ψφ Decays

CollaborationWith : Clark, Allan Geoffrey / Kambara, Hisanori / Speer, Thomas / Strumia Michelini, Federica / Wu, Xin
Published in Physical Review Letters. 2000, vol. 85, no. 22, p. 4668-4673
Abstract An angular analysis of B0→J/ψK*0 and B0s→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 B0s candidates obtained from 89pb−1 of p¯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 B0s decays. The parity-odd amplitude is found to be small with |A⊥|2=0.13+0.12−0.09±0.06 for B0 and |A⊥|2=0.23±0.19±0.04 for B0s decays.
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CDF COLLABORATION. Measurement of the Decay Amplitudes of B0→J/ψK*0 and Bs0→J/ψφ Decays. In: Physical Review Letters, 2000, vol. 85, n° 22, p. 4668-4673. https://archive-ouverte.unige.ch/unige:37896

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Deposited on : 2014-06-17

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