Observation of hard diffraction with CMS

Diffraction with a hard scale can be observed in the first LHC data. We present studies of single diffractive W-boson production ($pp \rightarrow Xp$, with X including a W boson) and of $\Upsilon$ photoproduction ($pp\rightarrow \Upsilon p$, with $\Upsilon \rightarrow \mu^+ \mu^-$). The feasibility of observing these processes with the CMS detector using the first 100 pb$^-^1$ of collected integrated luminosity for single interactions is discussed