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


CMS Collaboration; Amsler, C; Chiochia, V; Snoek, H; Favaro, C; Verzetti, M; Aguiló, E; De Visscher, S; Otyugova, P; Schmitt, A; Ivova, M; Storey, J; Millan, B (2011). Search for physics beyond the standard model using multilepton signatures in pp collisions at √s =7 TeV. Physics Letters B, 704(5):411-433.

Abstract

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 inverse picobarns of integrated luminosity in pp collisions at sqrt(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.

Abstract

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 inverse picobarns of integrated luminosity in pp collisions at sqrt(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.

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Additional indexing

Other titles:Search for physics beyond the standard model using multilepton signatures in pp collisions at sqrt(s)=7 TeV
Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:2011
Deposited On:13 Feb 2012 08:34
Last Modified:05 Apr 2016 15:36
Publisher:Elsevier
ISSN:0370-2693 (P) 1873-2445 (E)
Publisher DOI:https://doi.org/10.1016/j.physletb.2011.09.047
Related URLs:http://arxiv.org/abs/1106.0933v1

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Content: Accepted Version
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Size: 515kB