Observation of B0 -> chi_c0K*0 and evidence for B+ -> chi_c0K*+

The BABAR Collaboration; B. Aubert

doi:10.1103/PhysRevD.78.091101

Observation of B0 -> chi_c0K0 and evidence for B+ -> chi_c0K+

High Energy Physics - Experiment 2010-04-12 v2

Authors: The BABAR Collaboration , B. Aubert

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Abstract

We present the observation of the decay B0 -> chi_c0K*0 as well as evidence of B+ -> chi_c0K*+, with an 8.9 and a 3.6 standard deviation significance, respectively, using a data sample of 454 million Y(4S) -> BB decays collected with the BaBar detector at the PEP-II B meson factory located at the Stanford Linear Accelerator Center (SLAC). The measured branching fractions are: B(B0 -> chi_c0K*0) = (1.7 +/- 0.3 +/- 0.2) * 10^{-4} and B(B+ -> chi_c0K^*+) = (1.4 +/- 0.5 +/- 0.2) * 10^{-4}, where the first quoted errors are statistical and the second are systematic. We obtain a branching fraction upper limit of B(B+ -> chi_c0K*+) < 2.1 * 10^{-4} at the 90% confidence level.

Keywords

B meson decay chi_c0 K* meson branching fraction BaBar experiment PEP-II Y(4S) resonance

Cite

@article{arxiv.0808.1487,
  title  = {Observation of B0 -> chi_c0K*0 and evidence for B+ -> chi_c0K*+},
  author = {The BABAR Collaboration and B. Aubert},
  journal= {arXiv preprint arXiv:0808.1487},
  year   = {2010}
}

Comments

8 pages, 2 postscript figures, submitted to ICHEP2008