Search for eta_b in two-photon collisions at LEP II with the DELPHI detector

et al; J. Abdallah; the DELPHI Collaboration

Search for eta_b in two-photon collisions at LEP II with the DELPHI detector

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arxiv hep-ex/0601042 v1 pith:DI4675SL submitted 2006-01-25 hep-ex

The DELPHI Collaboration , J. Abdallah , et al This is my paper

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keywords gammatwo-photonbeencentre-of-masschargedcollisionsconfidencecorresponds

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The pseudoscalar meson eta_b has been searched for in two-photon interactions at LEP II. The data sample corresponds to a total integrated luminosity of 617 pb^{-1} at centre-of-mass energies ranging from 161 to 209 GeV. Upper limits at a confidence level of 95% on the product Gamma_{\gamma\gamma}(eta_b) x BR(eta_b) are 190, 470 and 660 eV/c^2 for the eta_b decaying into 4, 6 and 8 charged particles, respectively.

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