Higgs bosons with large transverse momentum at the LHC

Kirill Kudashkin; Jonas M. Lindert; Kirill Melnikov; Christopher Wever

doi:10.1016/j.physletb.2018.05.009

paper

Higgs bosons with large transverse momentum at the LHC

arXiv:1801.08226 · doi:10.1016/j.physletb.2018.05.009

Abstract

We compute the next-to-leading order QCD corrections to the production of Higgs bosons with large transverse momentum $p_{⊥} ≫ 2 m_{t}$ at the LHC. To accomplish this, we combine the two-loop amplitudes for processes $g g \to H g$ , $q g \to H q$ and $q q ˉ \to H g$ , recently computed in the approximation of nearly massless top quarks, with the numerical calculation of the squared one-loop amplitudes for $g g \to H g g$ , $q g \to H q g$ and $q q ˉ \to H g g$ processes. The latter computation is performed with OpenLoops. We find that the QCD corrections to the Higgs transverse momentum distribution at very high $p_{⊥}$ are large but quite similar to the QCD corrections obtained for point-like $H g g$ coupling. Our result removes one of the largest sources of theoretical uncertainty in the description of high- $p_{⊥}$ Higgs boson production and opens a way to use the high- $p_{⊥}$ region to search for physics beyond the Standard Model.

8 pages, 2 figures; V2: version accepted by PLB, results unchanged

Higgs bosons with large transverse momentum at the LHC

Abstract

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