  Production of the Upsilon(1S) meson in association with a vector boson is a
rare process in the standard model with a cross section predicted to be below
the sensitivity of the Tevatron. Observation of this process could signify
contributions not described by the standard model or reveal limitations with
the current non-relativistic quantum-chromodynamic models used to calculate the
cross section. We perform a search for this process using the full Run II data
set collected by the CDF II detector corresponding to an integrated luminosity
of 9.4/fb. The search considers the Upsilon(1S) to di-muon decay and the decay
of the W and Z bosons into muons and electrons. In these purely leptonic decay
channels, we observe one Upsilon(1S)W candidate with an expected background of
1.2 +/- 0.5 events, and one Upsilon(1S)Z candidate with an expected background
of 0.1 +/- 0.1 events. Both observations are consistent with the predicted
background contributions. The resulting upper limits on the cross section for
Upsilon(1S)+W/Z production are the most sensitive reported from a single
experiment and place restrictions on potential contributions from
non-standard-model physics.
