τ polarization asymmetry inB→Xsτ+τ−

Tau Polarization Asymmetry

University, Stanford, CA 94309 . . .. Rare B decays provide an opportunity to probe for new physics beyond the Standard Model. k this paper, we propose to measme the tau polarization in the inclusive decay B + X,7+7and discuss how it can be used, in conjunction with other observable, to completely determine the parameters of the flavor-changing low-energy effective Hamiltonian. Both the Standar...

τ Polarization in SUSY Cascade Decays

τ leptons emitted in cascade decays of supersymmetric particles are polarized. The polarization may be exploited to determine spin and mixing properties of the neutralinos and stau particles involved.

CP sensitive asymmetry in the three – body decay t̃ 1 → bν̃ τ τ +

A CP sensitive asymmetry in the three–body decay˜t 1 → b˜ν τ τ + Abstract We consider the three–body decay˜t1 → b˜ντ τ + and propose the asymmetry of the τ polarization perpendicular to the decay plane as a CP sensitive observable. We calculate this asymmetry in the Minimal Supersymmetric Standard Model with the parameters µ and At complex. In the parameter domain where the decay˜t1 → b˜ντ τ + ...

The τ forward-backward asymmetry within Grand Unified Theories

We will study some possible non universal corrections that could affect single measurements of the Weinberg angle sin θW (leaving the full average essentially unchanged). We will concentrate on the class of the models that introduces a new light gauge boson and an extended Higgs sector, but we restrict the Higgs charges choice in order to automatically achieve zero mixing at the tree level betw...

HU-TFT-92-50 POLARIZATION AND HANDEDNESS IN τ → a1ν → 3πν DECAY PRODUCED IN e + e − → τ + − ∗ τ