Background lineshape for CUORE

CUORE is one of the leading searches for neutrinoless double beta decay, a process which if discovered would show that lepton number conservation is violated and neutrinos are Majorana particles. CUORE uses an array of 988 individual TeO2 crystals operated at approximately 11 mK as both the source material and as bolometric detectors to look for this process in 130Te. It is necessary that we understand the energy response of each bolometer to maximize the sensitivity of the experiment. In this talk we describe the procedure to model the energy response of each detector. This involves characterizing the energy dependence of the detector resolution and calculating the uncertainty in energy reconstruction. We also discuss how the uncertainty in the detector response contributes to the systematic uncertainty of the neutrinoless double beta decay search.