July 28, 2020 to August 6, 2020
virtual conference
Europe/Prague timezone

Higgs boson pair production at N3LO QCD

Jul 31, 2020, 12:42 PM
18m
virtual conference

virtual conference

Talk 01. Higgs Physics Higgs Physics

Speaker

Hua-Sheng Shao (Peking University,Beijing,China)

Description

The Higgs boson pair production via gluon fusion at high-energy hadron colliders, such as the LHC, is vital in deciphering the Higgs potential and in pinning down the electroweak symmetry breaking mechanism. We carry out the next-to-next-to-next-to-leading order (N3LO) QCD calculations in the infinite top-quark mass limit. Such corrections are indispensable in stabilising the perturbative expansion of the cross section in the strong coupling constant.Given that the inclusion of the top-quark mass effects is essential for the phenomenological applications, we use several schemes to incorporate the N3LO results in the infinite top-quark mass limit and the next-to-leading order (NLO) results with full top-quark mass dependence.Our results provide one of the most precise theoretical predictions for the process.

Primary authors

Hua-Sheng Shao (Peking University,Beijing,China) Prof. Jian Wang (Shandong University) Dr Hai Tao Li (LANL) Prof. Long-Bin Chen (Guangzhou U.)

Presentation materials