Search for direct EWK production of SUSY particles in multilepton modes with 8TeV data

(Note: This revision of the original 2012/11/27 document includes a correction in the same-sign analysis section.) Final states with exactly three leptons, four leptons, two same-sign leptons, two opposite-sign-same-flavor leptons plus two jets, and two opposite-sign leptons inconsistent with Z boson decay, are studied using a data sample consisting of an integrated luminosity of $9.2\,\text{fb}^{\text{$-$1}}$ of proton-proton collision data collected in 2012 with the CMS detector at $\sqrt{s}=8~{\text{TeV}}$. The observed event rates are in agreement with expectations from the standard model. The results are used to set limits on the direct production of charginos, neutralinos, and sleptons. (The limits are unaffected by the same-sign analysis correction.)