Tests at a Tau/charm Factory with Longitudinally Polarized Beams
نویسنده
چکیده
In a recent paper, eight semileptonic parameters were defined to specify the most general Lorentz-invariant spin correlation functions for tau semileptonic decays. The parameters were physically defined in terms of tau-decay partial-width intensities for polarized final states. This paper studies how these parameters can be simply measured at a tau/charm factory with longitudinally polarized beams without using spin-correlation techniques. Thereby the parameters can also be used to bound the effective-mass scales Λ for “new physics” such as arising from lepton compositeness, leptonic CP violation, leptonic T violation, tau weak magnetism, weak electricity, and/or second-class currents. Electronic address: cnelson @ bingvmb.cc.binghamton.edu. Contributed paper to ICHEP96, Warsaw. 1
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