Measurement of the Michel parameter rho in muon decay

The TWIST Collaboration has measured the Michel parameter rho in normal muon decay,u+ -> e+VeVu. In the standard model of particle physics,rho = 3/4. Deviations from this value require mixing of left- and right-handed muon and electron couplings in the muon-decay Lagrangian. We find rho = 0:75080...

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Bibliographic Details
Main Author: Musser, James Raymond
Other Authors: Gagliardi, Carl
Format: Others
Language:en_US
Published: Texas A&M University 2006
Subjects:
rho
Online Access:http://hdl.handle.net/1969.1/3297