Observation of single-diffractive W production with CMS: a feasibility   study
  We present a study of single-diffractive $W$-boson production in $pp$ collisions at $\sqrt{s}=14$ TeV, $pp \to Xp$ with $X$ including a $W$ boson, with the CMS detector. We discuss the feasibility of observing this process with an integrated effective luminosity for single interactions of 100 pb$^{-1}$. 
A. Vilela Pereira (for the CMS Collaboration)