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arxiv: 1202.1904 · v2 · submitted 2012-02-09 · ✦ hep-ph

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Probing the Scattering of Equivalent Electroweak Bosons

Pascal Borel , Roberto Franceschini , Riccardo Rattazzi , Andrea Wulzer
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classification ✦ hep-ph
keywords approximationbosonsconditionsequivalentscatteringvalidityanalyzebasis
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We analyze the kinematic conditions under which the scattering of equivalent massive spin-1 vector bosons factorizes out of the complete process. In practice, we derive the conditions for the validity of the effective W approximation, proposed long ago but never established on a firm basis. We also present a parametric estimate of the corrections to the approximation and explicitly check its validity in two examples.

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