Rising bosonic electroweak virtual effects at high energy <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi>e</mi></mrow><mrow><mo>+</mo></mrow></msup></mrow><mrow><msup><mrow><mi>e</mi></mrow><mrow><mi>−</mi></mrow></msup></mrow></math></span> colliders

M. Beccaria; G. Montagna; F. Piccinini; F. M. Renard; C. Verzegnassi

doi:10.1103/PhysRevD.58.093014

Rising bosonic electroweak virtual effects at high energy $e^{+} e^{-}$ colliders

M. Beccaria, G. Montagna, F. Piccinini, F. M. Renard, and C. Verzegnassi

Phys. Rev. D 58, 093014 – Published 7 October 1998

Abstract

The virtual massive gauge boson effects on several observables in the process of charged fermion pair production at $e^{+} e^{-}$ colliders are computed up to the TeV energy range in the standard model, working in the “ $Z$ -peak-subtracted” representation. It is shown that these effects increase regularly with energy, approaching the typical 10% relative size. A careful numerical evaluation is proposed, where the conditions dictated by gauge invariance are consistently implemented.