Search for heavy narrow dilepton resonances in pp collisions at root s=7 TeV and root s=8 TeV
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
---|---|
Data(s) |
03/12/2014
03/12/2014
13/03/2013
|
Resumo |
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) An updated search for heavy narrow resonances decaying to muon or electron pairs using the CMS detector is presented. Data samples from pp collisions at root s = 7 TeV and 8 TeV at the LHC, with integrated luminosities of up to 5.3 and 4.1 fb(-1), respectively, are combined. No evidence for a heavy narrow resonance is observed. The analysis of the combined data sets excludes, at 95% confidence level, a Sequential Standard Model Z '(SSM) resonance lighter than 2590 GeV, a superstring-inspired Z '(psi) lighter than 2260 GeV, and Kaluza-Klein gravitons lighter than 2390 (2030) GeV, assuming that the coupling parameter k/(M) over bar (Pl) is 0.10 (0.05). These are the most stringent limits to date. (C) 2013 CERN. Published by Elsevier B.V. All rights reserved. |
Formato |
63-82 |
Identificador |
http://dx.doi.org/10.1016/j.physletb.2013.02.003 Physics Letters B. Amsterdam: Elsevier Science Bv, v. 720, n. 1-3, p. 63-82, 2013. 0370-2693 http://hdl.handle.net/11449/111310 10.1016/j.physletb.2013.02.003 WOS:000316513500006 WOS000316513500006.pdf |
Idioma(s) |
eng |
Publicador |
Elsevier B.V. |
Relação |
Physics Letters B |
Direitos |
openAccess |
Palavras-Chave | #CMS #Physics #Resonances #Z ' #Muons #Electrons |
Tipo |
info:eu-repo/semantics/article |