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arXiv · hep-ex/0211029

Inclusive eta' Production from the Upsilon(1S)

CLEO Collaboration·M. Artuso
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Abstract

Using the CLEO II detector at CESR, we measure the eta' - gluon - gluon form-factor in Y(1S) decays. This form-factor especially at large eta' energies may provide an explanation of the large rate for B -> Xs eta'. Our data do not support a large anomalous coupling at higher q^2 and thus the large eta' rate remains a mystery, possibly requiring a non-Standard Model explanation.

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CLEO Collaboration, M. Artuso. 2003-01-21. Inclusive eta' Production from the Upsilon(1S). https://doi.org/10.1103/physrevd.67.052003

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