Search for physics beyond the standard model using multilepton signatures in pp collisions at root s=7 TeV

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Data

2011-10-25

Autores

Chatrchyan, S.
Khachatryan, V.
Sirunyan, A. M.
Tumasyan, A.
Adam, W.
Bergauer, T.
Dragicevic, M.
Eroe, J.
Fabjan, C.
Friedl, M.

Título da Revista

ISSN da Revista

Título de Volume

Editor

Elsevier B.V.

Resumo

A search for physics beyond the standard model in events with at least three leptons and any number of jets is presented. The data sample corresponds to 35 pb(-1) of integrated luminosity in pp collisions at root s = 7 TeV collected by the CMS experiment at the LHC. A number of exclusive multileptonic channels are investigated and standard model backgrounds are suppressed by requiring sufficient missing transverse energy, invariant mass inconsistent with that of the Z boson, or high jet activity. Control samples in data are used to ascertain the robustness of background evaluation techniques and to minimise the reliance on simulation. The observations are consistent with background expectations. These results constrain previously unexplored regions of supersymmetric parameter space. (C) 2011 CERN. Published by Elsevier B.V. All rights reserved.

Descrição

Palavras-chave

CMS, Physics, Supersymmetry, Multileptons, Tau, MSUGRA, RPV, GMSB

Como citar

Physics Letters B. Amsterdam: Elsevier B.V., v. 704, n. 5, p. 411-433, 2011.