mu2x2
Mu2e is a proposed experiment at Fermilab designed to search for the charged lepton flavor violating (CLFV) process of neutrinoless muon-to-electron conversion. The experiment aims to achieve unprecedented sensitivity to this process, potentially revealing new physics beyond the Standard Model. The experiment will take a high-intensity beam of muons and stop them on a target. If a muon converts into an electron without emitting neutrinos, it would be a clear signature of CLFV. The mu2e experiment will detect this electron by measuring its energy and momentum. The expected background for this process is extremely low, allowing mu2e to set a very stringent limit on the rate of neutrinoless muon-to-electron conversion. This sensitivity is crucial because many extensions to the Standard Model, such as supersymmetry or theories with new heavy particles, predict rates for this process that are within reach of mu2e. The success of mu2e would either provide the first direct evidence of new particles or interactions or set significant constraints on existing theories.