### Study of anomalous gauge-Higgs couplings using

2021-3-1 · We first compute the helicity amplitudes for this process considering the following representations for the transverse and longitudinal polarization vectors of the Z: (3) ϵ μ (p, ±) = 1 2 (0, ∓ cos θ, − i, ± sin θ), (4) ϵ μ (p, 0) = 1 m Z (| p Z |, E Z sin θ, 0, E Z cos θ), where E Z and p Z are the energy and momentum of the Z respectively, with θ being the polar angle made by the Z with respect to the quark momentum taken to be along the positive z …

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