We report on measurements of the $\Upsilon \left(1S\right)$, $\Upsilon \left(2S\right)$, and $\Upsilon \left(3S\right)$ differential cross sections $(d^2\sigma {/dp}_T\mathrm{dy}{)}_{|y|<0.4\mathrm{}}$, as well as on the $\Upsilon \left(1S\right)$ polarization in $p\overline{p}$ collisions at $\sqrt{s}=1.8\mathrm{}\mathrm{TeV}$ using a sample of $77\pm 3{\mathrm{pb}}^{-1\mathrm{}}$ collected by the collider detector at Fermilab. The three resonances were reconstructed through the decay $\Upsilon \to {\mu }^{+}{\mu }^{-}$. The measured angular distribution of the muons in the $\Upsilon \left(1S\right)$ rest frame is consistent with unpolarized meson production.

• Received 13 November 2001

DOI:https://doi.org/10.1103/PhysRevLett.88.161802