Higgs bosons with large transverse momentum at the LHC

Kudashkin, Kirill  (Institute for Theoretical Particle Physics (TTP), KIT, Karlsruhe, Germany) ; Lindert, Jonas M. (Institute for Particle Physics Phenomenology, Durham University, Durham, DH1 3LE, UK) ; Melnikov, Kirill (Institute for Theoretical Particle Physics (TTP), KIT, Karlsruhe, Germany) ; Wever, Christopher  (Institute for Theoretical Particle Physics (TTP), KIT, Karlsruhe, Germany) (Institut für Kernphysik (IKP), KIT, Eggenstein-Leopoldshafen, 76344, Germany)

09 May 2018

Abstract: We compute the next-to-leading order QCD corrections to the production of Higgs bosons with large transverse momentum p⊥≫2mt at the LHC. To accomplish this, we combine the two-loop amplitudes for processes gg→Hg , qg→Hq and qq¯→Hg , recently computed in the approximation of nearly massless top quarks, with the numerical calculation of the squared one-loop amplitudes for gg→Hgg , qg→Hqg and qq¯→Hgg 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 Hgg 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.


Published in: Physics letters B (2018)
Published by: Elsevier
DOI: 10.1016/j.physletb.2018.05.009
License: CC-BY-3.0



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