[Triumf-seminars] TRIUMF Seminar today at 14:00

Thu, 6 May 2004 05:00:00 -0700

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Date/Time: Thu 2004-05-06 at 14:00

Location:  Auditorium          

Speaker:   Stefan Baeßler (University of Mainz)

Title:     Neutron decay and the Standard Model - The question of the unitarity of the Cabbibo-Kobayashi-Maskawa Matrix

Abstract: The traditional way of testing the Unitarity of the Cabbibo-Kobayashi-Maskawa matrix is a joint analysis of certain nuclear, Kaon and B meson decays. Since long the test fails by about 2 sigma. A recent measurement of the beta asymmetry in neutron decay seems to confirm this problem, but the agreement with older measurements of the beta asymmetry is poor. I will discuss this experiment (PERKEO II) and a new one (aSPECT) which aims to clarify the situation.

Stimulants available 15 minutes before talk

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