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

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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

  • Pugliese, Gabriella Maria Incoronata , Maggi, Giorgio Pietro , Creanza, Donato Maria , De Filippis, Nicola , My, Salvatore , Iaselli, Giuseppe , et al.

Titolo volume/Rivista

PHYSICS LETTERS. SECTION B

Anno di pubblicazione

2012

ISSN

0370-2693

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

Non Disponibile

Numero di citazioni Scopus

17

Ultimo Aggiornamento Citazioni

2017-04-23 03:20:56

Settori ERC

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Codici ASJC

Non Disponibile