Limits on the left-right symmetry scale and heavy neutrinos from early LHC data

We use the early Large Hadron Collider data to set the lower limit on the scale of left-right symmetry, by searching for the right-handed charged gauge boson WR via the final state with two leptons and two jets, for 33 pb1 integrated luminosity and 7 TeV center-of-mass energy. This signal is kinematically observable for right-handed neutrino lighter than WR. In the absence of a signal beyond the standard model background, we set the bound MWR * 1:4 TeV at 95% C.L.. This result is obtained for a range of right-handed neutrino masses of the order of few 100 GeV, assuming no accidental cancellation in right-handed lepton mixings.

We use the early Large Hadron Collider data to set the lower limit on the scale of left-right symmetry, by searching for the right-handed charged gauge boson W(R) via the final state with two leptons and two jets, for 33 pb(-1) integrated luminosity and 7 TeV center-of-mass energy. This signal is kinematically observable for right-handed neutrino lighter than WR. In the absence of a signal beyond the standard model background, we set the bound M(WR) greater than or similar to 1.4 TeV at 95% C.L.. This result is obtained for a range of right-handed neutrino masses of the order of few 100 GeV, assuming no accidental cancellation in right-handed lepton mixings.