Search for high-mass resonances decaying into tau-lepton pairs in pp collisions at root s=7 TeV
CMS Collaboration (ukupan broj autora: 2204)
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A search for high-mass resonances decaying into tau(+)tau(-) is performed using a data sample of pp collisions at root s = 7 TeV. 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 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. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.
Keywords:CMS / Exotica / tau / Z
Source:Physics Letters B, 2012, 716, 1, 82-102
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