Fixed-Target CP-Violation Experiments at Fermilab

Studies of CP violation, for 30 years focused primarily on the neutral K meson, are on the threshold of a new era as experiments approach Standard-Model sensitivities in decays of beauty, charm, and hyperons. The array of heavy-quark experiments approved and planned at Fermilab may lead to a significant breakthrough in the next five to ten years.Comment: Revised and expanded for greater clarity and completeness. 15 pages, 6 PostScript figure

Remarks on Muon g−2g-2 Experiments and Possible CP Violation in π→μ→e\pi\to\mu\to e Decay

The first experimental limit on CP violation in pi -> mu -> e decay is extracted from published results of the CERN g-2 experiment.Comment: 2 pages, LaTeX, submitted to Phys. Rev.

Muon Colliders and Neutrino Factories

Muon colliders and neutrino factories are attractive options for future facilities aimed at achieving the highest lepton-antilepton collision energies and precision measurements of Higgs boson and neutrino mixing matrix parameters. The facility performance and cost depend on how well a beam of muons can be cooled. Recent progress in muon cooling design studies and prototype tests nourishes the hope that such facilities could be built starting in the coming decade. The status of the key technologies and their various demonstration experiments is summarized. Prospects "post-P5" are also discussed.Comment: 16 pages, 10 figures. To appear in Proc. ICNFP201