  A search for a heavy gauge boson W' has been conducted by the CMS experiment
at the LHC in the decay channel with an electron and large transverse energy
imbalance, using proton-proton collision data corresponding to an integrated
luminosity of 36 inverse picobarns. No excess above standard model expectations
is seen in the transverse mass distribution of the electron-(missing E_T)
system. Assuming standard-model-like couplings and decay branching fractions, a
W' boson with a mass less than 1.36 TeV/c^2 is excluded at 95% confidence
level.
