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Measurement of Decay Amplitudes of B -->(c cbar) Kstar with an Angular Analysis, for (c cbar)=J/psi, psi(2S) and chi_c1

We perform the first three-dimensional measurement of the amplitudes of $B\to ψ(2S) K^*$ and $B\to χ_{c1} K^*$ decays and update our previous measurement for $B\to J/ψK^*$. We use a data sample collected with the BaBar detector at the PEP2 storage ring, corresponding to 232 million $B\bar B$ pairs. The longitudinal polarization of decays involving a $J^{PC}=1^{++}$ $χ_{c1}$ meson is found to be larger than that with a $1^{--}$ $J/ψ$ or $ψ(2S)$ meson. No direct {\it CP}-violating charge asymmetry is observed.

preprint2007arXivOpen access

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