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Study of the Process e+ e- ---> eta gamma in c.m. Energy Range 600-1380 MeV at CMD-2

High Energy Physics - Experiment 2010-05-28 v2
Authors: 2 collaboration
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Abstract

The cross section of the process e+ e- ---> eta gamma has been measured in the 600-1380 MeV c.m. energy range with the CMD-2 detector. The following branching ratios have been determined: B(rho ---> eta gamma) = (3.28 +- 0.37 +- 0.23) 10^{-4}, B(omega ---> eta gamma) = (5.10 +- 0.72 +- 0.34) 10^{-4}, B(phi --> eta gamma) = (1.287 +- 0.013 +- 0.063) 10^{-2}. Evidence for the rho'(1450) ---> eta gamma decay has been obtained for the first time.

Keywords

e+ e- annihilation eta gamma production CMD-2 detector vector meson decay branching ratio

Cite

@article{arxiv.hep-ex/0103043,
  title  = {Study of the Process e+ e- ---> eta gamma in c.m. Energy Range 600-1380 MeV at CMD-2},
  author = {2 collaboration},
  journal= {arXiv preprint arXiv:hep-ex/0103043},
  year   = {2010}
}

Comments

17pages, 4 figures, submited to Phys.Lett.B

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