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Supersymmetric contributions to electroweak precision observables: QCD corrections
A. Djouadi, P. Gambino, S. Heinemeyer +3
We calculate the two-loop QCD correction to the scalar quark contributions to the electroweak gauge-boson self-energies at zero momentum-transfer in the supersymmetric extension of…
Precision tests of the SM and higher order effects: the example of the effective mixing angle
Paolo Gambino
The radiative corrections involved in the precise determination of the electroweak mixing angle measured at the Z-peak are reviewed in detail, with particular emphasis on the new c…
Two-loop heavy top effects on precision observables
Paolo Gambino
The corrections induced by a heavy top on the main precision observables are now available up to O(alpha^2 mt^2/mw^2). The new results imply a significant reduction of the theoreti…
New proton polarized structure functions in charged current processes at HERA
M. Anselmino, P. Gambino, J. Kalinowski
Estimates for longitudinal spin asymmetries which single out new polarized nucleon structure functions in deeply inelastic charged current interactions at HERA energies are given,…
Polarization and Weak Mixing Angle in High Energy e^\pm e^- Collisions
Frank Cuypers, Paolo Gambino
At a linear collider of the next generation the large event rates expected from Bhabha and Møller scattering may be used to determine simultaneously sin^2θ_w and the polarization o…