Radiative corrections to W +W - → W +W - in the electroweak standard model
Abstract
The cross-section for W +W - → W +W - with arbitrarily polarized W bosons is calculated within the Electroweak Standard Model including the complete virtual and soft-photonic O(α) 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(α) 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(α).
- Publication:
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Nuclear Physics B
- Pub Date:
- August 1998
- DOI:
- 10.1016/S0550-3213(98)00287-9
- arXiv:
- arXiv:hep-ph/9711302
- Bibcode:
- 1998NuPhB.525...27D
- Keywords:
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- High Energy Physics - Phenomenology
- E-Print:
- 24 pages, LaTeX, uses axodraw, epsfig. Statement clarified