Search for eta_b(1S) in Inclusive Radiative Decays of the Upsilon(3S)

Details Search for eta_b(1S) in Inclusive Radiative Decays of the Upsilon(3S) Search for eta_b(1S) in Inclusive Radiative Decays of the Upsilon(3S)

2002-07-24

arxiv.org/abs/hep-ex/0207057v1

Physics

High Energy Physics

High Energy Physics - Experiment

11 pages postscript, also available through http://w4.lns.cornell.edu/public/CLNS

Scientific paper

We have searched for the bottomonium eta_b(1S) via the hindered magnetic dipole (M1) photon transition Upsilon(3S) -> gamma eta_b(1S). No evidence for such a transition is found in the data sample of 4.7 x 10^6 Upsilon(3S)'s collected with the CLEO-III detector. We set upper limits on the branching ratio from 9.30 to 9.43 GeV/c^2 of eta_b(1S) masses. These upper limits rule out many previously published phenomenological estimates of the rate for this transition.

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