# Anomalous three-boson coupling constants in the single production of *W* bosons at a future *e*^{+}*e*^{−} linear collider

## Abstract

The question of whether constraints on the anomalous parameters of *WWγ* and *WWZ* three-boson interactions can be deduced from an analysis of data on the reaction *e*^{+}*e*^{−} → *W*^{−}*e*^{+}*ν* that are expected to come from a future \(\sqrt s = 500 - GeVe^ + e^ - \) linear collider of integrated luminosity of *L*=50, 100, or 500 fb^{−} is discussed. An analysis of relevant differential distributionns reveals that, in contrast to pair *W*-boson production, the reaction mentioned immediately above is highly sensitive to the parameter *λ*_{Z} and that the resulting constraints can be viewed as those that supplement the constraints that follow from data on *e*^{+}*e*^{−}→*W*^{+}*W*^{−}. For the experiment being discussed, two possible implementations of a detector are considered that correspond to the kinematical regions |cos \(\left| {\cos \theta _{e^ + } } \right| \leqslant \cos 7^\circ \) and \(\left| {\cos \theta _{e^ + } } \right| \leqslant \cos 1.5^\circ \). It is indicated that the region of small positron-scattering angles is of importance for improving the sensitivity of the process. In setting constraints on the anomalous parameters, the SEWS scenario for anomalous boson coupling constants, where interactions responsible for electroweak-symmetry breaking are strongly coupled, is examined along with the case of the most general parametrization of the *WWγ*(*Z*) three-boson vertices.

## Keywords

Elementary Particle Single Production General Parametrization Integrate Luminosity Linear Collider## Preview

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