Radiative Corrections to W^+W^- \to W^+W^- in the Electroweak Standard Model

Details Radiative Corrections to W^+W^- \to W^+W^- in the Electroweak Standard Model Radiative Corrections to W^+W^- \to W^+W^- in the Electroweak Standard Model

1997-11-12

arxiv.org/abs/hep-ph/9711302v2

Nucl.Phys.B525:27-50,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

24 pages, LaTeX, uses axodraw, epsfig. Statement clarified

Scientific paper

10.1016/S0550-3213(98)00287-9

The cross-section for W^+W^- \to W^+W^- with arbitrarily polarized W bosons is calculated within the Electroweak Standard Model including the complete virtual and soft-photonic O(alpha) corrections. We show the numerical importance of the radiative corrections for the dominating polarized cross-sections and for the unpolarized cross-section. The numerical accuracy of the equivalence theorem is investigated in O(alpha) by comparing the cross-section for purely longitudinal W bosons obtained from the equivalence theorem and from the direct calculation. We point out that the instability of the W boson, which is inherent in the one-loop corrections, prevents a consistent calculation of radiative corrections to the scattering of on-real-mass-shell longitudinal W bosons beyond O(alpha).

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