302
P. Jenni and T. S. Virdee
Fig. 6.22 Combined measurements of the products σ.BR for the five main production and five
main decay modes. The hatched combinations require more data for a meaningful confidence
interval to be provided
Fig. 6.23 (a) Reduced coupling strength modifiers κ F (m F /v) for fermions (t, b, τ, μ) and
(
√ κ V )(m V /v) for vector bosons (W, Z) as a function of their masses m F and m V , respectively.
The SM prediction for both cases is also shown (dotted line). (b) Likelihood scan in the M-ε plane.
The best-fit point and, 1σ, 2σ CL regions are shown, along with the SM prediction
to the Higgs boson decays, and the SM structure of loop processes. The line is the
expectation from the SM.
CMS has made a similar fit, shown in Fig. 6.23b [56], using a phenomenological
parameterization relating the masses of the fermions and vector bosons to the
corresponding κ modifiers using two parameters, denoted M and ε. In such a
model one can relate the coupling modifiers to M and ε as κ F = v m
∈
f /M 1+∈ for