Search for high-mass resonances decaying into τ-lepton pairs in pp collisions at s=7 TeV Academic Article uri icon

abstract

  • A search for high-mass resonances decaying into τ +τ - is performed using a data sample of pp collisions at s=7TeV. The data were collected with the CMS detector at the LHC and correspond to an integrated luminosity of 4.9 fb -1. The number of observed events is in agreement with the standard model prediction. An upper limit on the product of the resonance cross section and branching fraction into τ-lepton pairs is calculated as a function of the resonance mass. Using the sequential standard model resonance ZSSM' and the superstring-inspired E 6 model with resonance Zψ' as benchmarks, resonances with standard model couplings with masses below 1.4 and 1.1 TeV, respectively, are excluded at 95% confidence level. © 2012 CERN.

altmetric score

  • 0.25

author list (cited authors)

  • Chatrchyan, S., Khachatryan, V., Sirunyan, A. M., Tumasyan, A., Adam, W., Bergauer, T., ... Swanson, J.

citation count

  • 28

publication date

  • September 2012