Search for high-mass resonances decaying into tau-lepton pairs in pp collisions at root s=7 TeV
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
30/09/2013
20/05/2014
30/09/2013
20/05/2014
17/09/2012
|
Resumo |
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) 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. |
Formato |
82-102 |
Identificador |
http://dx.doi.org/10.1016/j.physletb.2012.07.062 Physics Letters B. Amsterdam: Elsevier B.V., v. 716, n. 1, p. 82-102, 2012. 0370-2693 http://hdl.handle.net/11449/24159 10.1016/j.physletb.2012.07.062 WOS:000309621400004 |
Idioma(s) |
eng |
Publicador |
Elsevier B.V. |
Relação |
Physics Letters B |
Direitos |
closedAccess |
Palavras-Chave | #CMS #Exotica #tau #Z ' |
Tipo |
info:eu-repo/semantics/article |