H + W − Z contribution to the static quantities of the W boson in the context of Higgs-triplet theories
Abstract
We calculate the one--loop contribution from the
H
+
W
−
Z
coupling to the static electromagnetic properties of the W boson. Although this coupling is absent at the tree--level in all Higgs--doublet models, it can be induced at this order in models including Higgs--triplet representations. It is found that the
H
+
W
−
Z
contribution can be as important as those arising from other couplings including Higgs bosons, such as the standard model coupling WWH or the two--Higgs--doublet model couplings
H
+
W
−
ϕ
0
and
WW
ϕ
0
, with
ϕ
0
=h
,
H
and
A
.