Production of Y(1S) Mesons from chib Decays in pp(bar) Collisions at sqrt(s)=1.8 TeV

CDF Collaboration, T. Affolder

We have reconstructed the radiative decays ${\chi }_b(1P)\to {\rm Y}(1S)\gamma$ and ${\chi }_b(2P)\to {\rm Y}(1S)\gamma$ in $p\bar{p}$ collisions at $\sqrt{s}=1.8$ TeV, and measured the fraction of $Υ(1S…