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

The DELPHI Collaboration·J. Abdallah
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Abstract

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_{γγ}(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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The DELPHI Collaboration, J. Abdallah. 2006-01-25. Search for eta_b in two-photon collisions at LEP II with the DELPHI detector. https://doi.org/10.1016/j.physletb.2006.01.058

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