Searches for supersymmetry based on events with b jets and four W bosons in pp collisions at 8 TeV

Khachatryan, V. and Sirunyan, A. M. and Tumasyan, A. and Adam, W. and Bergauer, T. and Bencze, György and Hajdú, Csaba and Hidas, Pál and Horváth, Dezső and Siklér, Ferenc and Veszprémi, Viktor and Vesztergombi, György and Zsigmond, Anna Júlia and Veres, Gábor (2015) Searches for supersymmetry based on events with b jets and four W bosons in pp collisions at 8 TeV. PHYSICS LETTERS B, 745. pp. 5-28. ISSN 0370-2693

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Abstract

Five mutually exclusive searches for supersymmetry are presented based on events in which b jets and four W bosons are produced in proton-proton collisions at sqrt(s) = 8 TeV. The data, corresponding to an integrated luminosity of 19.5 inverse femtobarns, were collected with the CMS experiment at the CERN LHC in 2012. The five studies differ in the leptonic signature from the W boson decays, and correspond to all-hadronic, single-lepton, opposite-sign dilepton, same-sign dilepton, and >3 lepton final states. The results of the five studies are combined to yield 95% confidence level exclusions of 1280 and 570 GeV for the gluino and bottom-squark masses in the context of gluino and bottom-squark pair production, respectively. These limits are around 50 GeV more stringent than are obtained from any of the individual channels.

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