Abstract
We present a fully-differential calculation of the \( H\to b\overline{b} \) decay at next-to-next-to-next-to-leading order (N3LO) accuracy. Our calculation considers diagrams in which the Higgs boson couples directly to the bottom quarks, i.e. the perturbative order we consider is \( \mathcal{O}\left({\alpha}_s^3{y}_b^2\right) \). In order to regulate the infrared divergences present at this order we use the Projection-to-Born technique coupled with N -jettiness slicing. After validating our methodology at next-to-next-to-leading order (NNLO) we present exclusive jet rates and differential distributions for jet observables at N3LO accuracy using the Durham jet algorithm in the Higgs rest frame.
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Mondini, R., Schiavi, M. & Williams, C. N3LO predictions for the decay of the Higgs boson to bottom quarks. J. High Energ. Phys. 2019, 79 (2019). https://doi.org/10.1007/JHEP06(2019)079
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DOI: https://doi.org/10.1007/JHEP06(2019)079