Inclusive eta' Production from the Upsilon(1S)

Details Inclusive eta' Production from the Upsilon(1S) Inclusive eta' Production from the Upsilon(1S)

2002-11-11

arxiv.org/abs/hep-ex/0211029v2

Phys.Rev.D67:052003,2003

Physics

High Energy Physics

High Energy Physics - Experiment

14 pages postscript, also available through http://w4.lns.cornell.edu/public/CLNS, submitted to PRD

Scientific paper

10.1103/PhysRevD.67.052003

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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