Abstract
The CP-even static form factors Δk’v and ΔQV (V =γ, Z) associated with the WWV vertex are studied in the context of the Georgi-Machacek model (GMM), which predicts nine new scalar bosons accommodated in a singlet, a triplet and a fiveplet. General expressions for the one-loop contributions to Δk’v and ΔQV arising from neutral, singly and doubly charged scalar bosons are obtained in terms of both parametric integrals and Passarino- Veltman scalar functions, which can be numerically evaluated. It is found that the GMM yields 15 (28) distinct contributions to Δk’γ and ΔQγ (Δk'z and ΔQz), though several of them are naturally suppressed.
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