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

postmaster@admin.triumf.ca postmaster@admin.triumf.ca
Thu, 20 Oct 2005 05:00:00 -0700


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Date/Time: Thu 2005-10-20 at 14:00

Location:  Auditorium          

Speaker:   Wulf Fetscher (ETH Zurich)

Title:     Muon Decay and the Standard Model: Measurement of the Transverse  
Polarization of the Decay Positrons and its Implications for the  
Fermi constant and Time Reversal Invariance

Abstract: Two decades ago it was shown that a selected set of  precision experiments in normal and inverse muon decay completely determine the decay interaction, with all leptons being lefthanded. There is still room, however, for extensions of the standard model, all of which have at least partially righthanded couplings. I will report about our measurement of the transverse polarization of the decay positrons which yields improved limits on the decay parameter eta needed for a model-independent determination of the Fermi constant G_F as well as on a possible violation of time reversal invariance in a purely leptonic reaction.


Stimulants available 15 minutes before the talk.

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