Synchrotron radiation from conversion electrons as a novel technique to investigate charged lepton flavor violation.

The conversion of a muon captured by a nucleus into an electron has been one of the most powerful methods to search for Charged Lepton Flavor Violation (CLFV). Exceptional experimental progress has been made in the last decade, enabling upcoming experiments like Mu2e and COMET to improve the sensitivity of the μ → e search by four orders of magnitude. This is enabled by the state-of-the-art low-mass tracking detectors that let the experiments achieve excellent momentum resolution (of the order of 0.15%). However, the momentum resolution in tracking detectors is inherently limited by multiple scattering of the electrons. Ongoing efforts to further reduce the material budget of these detectors will likely push the current technologies to the limit. In this talk, we will present a novel idea of using synchrotron radiation from the emitted electrons for momentum reconstruction, which eliminates the scattering issue. We will define a clear experimental idea of how such a detection system might work for CLFV searches, together with its limitations and challenges, both in terms of intrinsic momentum resolution and background elimination.