English

Obervation of \chi_{cJ}--> omega omega decays

High Energy Physics - Experiment 2012-08-03 v1
Authors: BES Collaboration , M. Ablikim
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Abstract

Decays of χc0,2\ar\ww\chi_{c0,2}\ar\ww are observed for the first time using a sample of 14.0×10614.0\times 10^6 ψ(2S)\psi(2S) events collected with the BESII detector. The branching ratios are determined to be B(χc0\ar\ww)=(2.29±0.58±0.41)×10−3{\cal B}(\chi_{c0}\ar \ww)=(2.29\pm 0.58\pm 0.41)\times 10^{-3} and B(χc2\ar\ww)=(1.77±0.47±0.36)×10−3{\cal B}(\chi_{c2}\ar\ww)=(1.77\pm 0.47\pm 0.36)\times 10^{-3}, where the first errors are statistical and the second systematic. The significances of the two signals are 4.4σ4.4\sigma and 4.7σ4.7\sigma, respectively.

Keywords

chi_cJ decays omega omega BESII detector branching ratios statistical and systematic errors significance

Cite

@article{arxiv.hep-ex/0506045,
  title  = {Obervation of \chi_{cJ}--> omega omega decays},
  author = {BES Collaboration and M. Ablikim},
  journal= {arXiv preprint arXiv:hep-ex/0506045},
  year   = {2012}
}

Comments

6 pages, 6 figures

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