We point out that the recent excess observed in searches for a right-handed
gauge boson W_R at CMS can be explained in a left-right symmetric model with D
parity violation. In a class of SO(10) models, in which D parity is broken at a
high scale, the left-right gauge symmetry breaking scale is naturally small,
and at a few TeV the gauge coupling constants satisfy g_R ~ 0.6 g_L. Such
models therefore predict a right-handed charged gauge boson W_R in the TeV
range with a suppressed gauge coupling as compared to the usually assumed
manifest left-right symmetry case g_R = g_L. The recent CMS data show excess
events which are consistent with the cross section predicted in the D parity
breaking model for 1.9 TeV < M_{W_R} < 2.4 TeV. If the excess is confirmed, it
would in general be a direct signal of new physics beyond the Standard Model at
the LHC. A TeV scale W_R would for example not only rule out SU(5) grand
unified theory models. It would also imply B-L violation at the TeV scale,
which would be the first evidence for baryon or lepton number violation in
nature and it has strong implications on the generation of neutrino masses and
the baryon asymmetry in the Universe.Comment: 4 pages, 2 figures, matches published versio