Search for R-parity violating supersymmetry with displaced vertices

A search for $R$-parity violating supersymmetry has been performed using proton-proton collision data collected by the CMS experiment at a center-of-mass energy of $\sqrt{s}=8~\mathrm{TeV}$. The data analyzed correspond to an integrated luminosity of $17.6~\mathrm{fb}^{-1}$. This search assumes a minimal flavor violating model where the lightest supersymmetric particle is a long-lived neutralino or gluino, leading to a signal with jets emanating from displaced vertices. Based on a sample of events with two displaced vertices, the pair production cross section is bounded as a function of mass and lifetime of the neutralino or gluino. For a mass of 400 GeV and mean proper decay length of 10 mm, the analysis excludes cross sections above $0.6~\mathrm{fb}$ at $95\%$ confidence level.