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High Energy Physics Seminars
| High Energy
Wednesday, May 1, 2002
Physics Building, Room 204
[Host: H. Thacker]
University of Virginia
"The CKM Experiment at Fermilab: Attacking the CKM Matrix Using Charged Kaons"
The CKM (Charged Kaons at the Main injector) collaboration is
planning a new Fermilab experiment whose goal is to measure the Cabibbo,
Kobayashi, Maskawa matrix element V(td) with a statistical precision of 5%.
This is done through the measurement of the branching ratio of the
ultra-rare charged kaon decay: K+ -> pi+ nu nu. This measurement will
play a critical role in testing the Standard Model hypothesis that the
sole source of CP violation in nature resides in the imaginary parts of
the Cabibbo, Kobayashi, Maskawa matrix elements. Attacking this question
in the kaon sector is both experimentally and theoretically independent of
the ongoing programs to measure these same parameters in the B meson sector.
To make this challenging measurement a novel decay-in-flight spectrometer
has been designed. I will discuss the physics, the spectrometer, and give
the status of the experiment.
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