Virtual corrections to g g ---> H to two loops in the heavy top limit

The virtual corrections to the production cross section of a Standard Model Higgs boson are computed up to order \alpha_s^4. Using an effective Lagrangian for the limit M_t -> \infty, we evaluate the relevant massless two-loop vertex diagrams by mapping them onto three-loop two-point functions, following a method recently introduced by Baikov and Smirnov. As a result, we find a gauge-invariant contribution to the total Higgs production cross section at NNLO.

gluon gluon: fusion
Higgs particle: hadroproduction
effective Lagrangian
mass: top
channel cross section: correction
quantum chromodynamics
perturbation theory: higher-order
invariance: gauge
form factor: momentum transfer
form factor: ratio

References(33)

Figures(0)

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