Search for the lepton-flavor-number violating decay kaon long decays to neutral pion muon antimuon electron positron in the full E799II kaons at the TeVatron data set
Bellavance, Angela Maria
Corcoran, Marjorie D.
Doctor of Philosophy
Experiments E799 Phase-II (E79911) and E832 of the Kaons at the TeVatron (KTeV) project at the Fermi National Accelerator Laboratory (Fermilab) were designed to study rare and CP-violating kaon decays. The experiments ran first during 1996 and 1997, and then again during 1999. This study focused on the E799II search for the lepton-flavor-violating decay mode KL → pi 0mu+/-e∓, and on its accompanying background decays, in the full set of 1996--7 and 1999 KTeV data. For the combined data sets, we calculated a new 90% confidence level branching ratio limit BR(KL → pi 0mu+/-e∓) < 3.37 x 10-10.
Particle physics; Elementary particles; High energy physics