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

作者：Nemevsek Miha^*; Nesti Fabrizio; Senjanovic Goran; Zhang Yue

来源：Physical Review D - Particles, Fields, Gravitation and Cosmology, 2011, 83(11): 115014.

DOI：10.1103/PhysRevD.83.115014

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.

• 出版日期2011-6-13