Search for high-mass resonances decaying into τ-lepton pairs in pp collisions at s = 7 TeV
A search for high-mass resonances decaying into tau-lepton pairs is performed using a data sample of pp collisions at $$ \sqrt{s}=7 $$ TeV. The data were collected with the CMS detector at the LHC and correspond to an integrated luminosity of 4.9 inverse femtobarns. 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 tau-lepton pairs is calculated as a function of the resonance mass. Using the sequential standard model resonance Z'(SSM) and the superstring-inspired E(6) model with resonance Z'(psi) as benchmarks, resonances with standard model couplings with masses below 1.4 and 1.1 TeV, respectively, are excluded at 95% confidence level.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Organization:
- CMS
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1423280
- Report Number(s):
- FERMILAB-PUB-12-718-CMS; CMS-EXO-11-031; CERN-PH-EP-2012-137; arXiv:1206.1725; 1117702
- Journal Information:
- Physics Letters. Section B, Vol. 716, Issue 1; ISSN 0370-2693
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
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