Search for high mass resonances decaying into tau-lepton pairs in pp collisions at sqrt(s) = 7 TeV

Abstract : 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.
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Journal articles
Physics Letters B, Elsevier, 2012, 716, pp.82-102. <10.1016/j.physletb.2012.07.062>


http://hal.in2p3.fr/in2p3-00706603
Contributor : Florès Sylvie <>
Submitted on : Monday, June 11, 2012 - 10:00:51 AM
Last modification on : Monday, June 11, 2012 - 10:00:51 AM

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S. Chatrchyan, M. Besancon, S. Choudhury, M. Dejardin, D. Denegri, et al.. Search for high mass resonances decaying into tau-lepton pairs in pp collisions at sqrt(s) = 7 TeV. Physics Letters B, Elsevier, 2012, 716, pp.82-102. <10.1016/j.physletb.2012.07.062>. <in2p3-00706603>

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