Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
1996-08-26
Physics
High Energy Physics
High Energy Physics - Experiment
11 pages, no figures, To be published in the Proceedings of AGS2000, Workshop on AGS experiments for the 21st century, Brookha
Scientific paper
We have examined the physics and the experimental feasibility at the AGS of various kaon decay processes in which the polarization of a muon in the final state is measured. Valuable information on CP violation, the CKM matrix or new physics can be obtained with these measurements and therefore they are well motivated. In particular, models of non-standard CP violation that produce the baryon asymmetry of the universe could also produce effects observable in these measurements. Limits from measurements such as the neutron and electron electric dipole moment, and epsilon-prime over epsilon in neutral kaon decays do not eliminate all of these models. We have made a more detailed examination of the measurement of the out of the plane muon polarization in Kmu3 decays. With our current knowledge of the AGS kaon beams and detector techniques it is possible to measure this polarization with an error approaching 10**-4. Such an experiment would be well justified since the sensitivity is well beyond the current direct experimental limit (5.3 times 10**-3) and the projected sensitivity (10**-3) of the currently running experiment at KEK in Japan.
Adair Robert
Atoyan Grigor
Barakat Basem
Diwan Milind V.
Imazato Jun
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