  We present a search for long-lived charged particles that decay within the
CMS detector and produce the signature of a disappearing track. Disappearing
tracks are identified as those with little or no associated calorimeter energy
deposits and with missing hits in the outer layers of the tracker. The search
uses proton-proton collision data recorded at $\sqrt{s} = 8$ TeV that
corresponds to an integrated luminosity of 19.5 fb$^{-1}$. The results of the
search are interpreted in the context of the anomaly-mediated supersymmetry
breaking model and in terms of the phenomenological MSSM.
