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

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Abstract

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.

Autore Pugliese

Tutti gli autori

  • POMPILI A.;MARANGELLI B.;CALABRIA C.;SELVAGGI G.;SINGH G.;LUSITO L.;BARBONE L.;ABBRESCIA M.;DE PALMA M.;PACIFICO N.;MY S.;NUZZO S.V.;CHHIBRA S.S

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Anno di pubblicazione

2012

ISSN

0370-2693

ISBN

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Numero di citazioni Wos

32

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Numero di citazioni Scopus

26

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Settori ERC

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Codici ASJC

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