Mitchell Institute for Fundamental Physics & Astronomy
College Station, Texas 77843
Mu2e is an upcoming muon conversion experiment with unprecedented sensitivity to charged lepton flavor violation. It is also an ideally suited environment in which to study two body decays (i.e. those with mono-energetic daughters) with a final state electron/positron. In their nominal run, Mu2e will use $\mu^-$ which bind to nuclei and introduce a host of systematic uncertainties. In this talk I will describe how Mu2e calibration data planned to be taken with a $\mu^+$ beam can be used to search for axion, heavy neutral leptons, and lepton flavor violating $Z'$ models.