Radiative corrections to chargino production in electron-positron collisions

Radiative Corrections to Chargino Production in Electron-Positron Collisions

The results of a complete one-loop calculation for the production of chargino pairs in electron-positron collisions, including the option of polarized beams, are presented. The calculation has been performed in the on-shell renormalization scheme. Applications to the integrated cross section, to the forward-backward asymmetry for unpolarized beams, and to the left-right asymmetry show that the ...

Prototype Graphs for Radiative Corrections to Polarized Chargino or Neutralino Production in Electron-Positron Annihilation

We present the contributions from all types of one-loop corrections to the scattering amplitude for the pair production of polarized charginos or neutralinos from polarized electron-positron annihilation. The contributions are classified in terms of “prototypes” distinguished by the number of particles inside the loops and their spins. The results are quoted in terms of the Veltman-Passarino fu...

Electroweak Radiative Corrections to W Boson Production in Hadronic Collisions

The O(α) electroweak radiative corrections to the process p p (−) →W± → `±ν (` = e, μ) are calculated. The O(α) corrections can be decomposed into separately gauge invariant contributions to the W boson production and decay processes. Factorizing the collinear singularity associated with initial state photon radiation into the parton distribution functions, we find that initial state correction...

Strong radiative corrections to Wbb̄ production in pp̄ collisions

Higher-order QED corrections to single-W production in electron-positron collisions

Four-fermion processes with a particle lost in the beam pipe are studied at lep to perform precision tests of the electroweak theory. Leading higher-order qed corrections to such processes are analyzed within the framework of the Structure Functions (sf) approach. The energy scale entering the qed sf is determined by inspection of the soft and collinear limit of the O(α) radiative corrections t...