Higgs Boson Pair Production via Gluon Fusion: Higher-Order Corrections and Theoretical Uncertainties
Ajjath A H, Simone Alioli, Emanuele Bagnaschi, Arunima Bhattacharya, Huan-Yu Bi, Roberto Bonciani, Marco Bonetti, Francisco Campanario, Sauro Carlotti, Jamie Chang, Long-Bin Chen, Xuan Chen, Yuesheng Dai, Joshua Davies, Giuseppe Degrassi, Pier Paolo Giardino, Massimiliano Grazzini, Ramona Gröber, Gudrun Heinrich, Li-Hong Huang, Rui-Jun Huang, Sebastian Jaskiewicz, Stephen Jones, Stefan Kallweit, Matthias Kerner, Hai Tao Li, Shi-Yuan Li, Jonas M. Lindert, Yan-Qing Ma, Giulia Marinelli, Javier Mazzitelli, Margarete Mühlleitner, Davide Napoletano, Philipp Rendler, Jonathan Ronca, Johannes Schlenk, Kay Schönwald, Hua-Sheng Shao, Michael Spira, Thomas Stone, Daniel Stremmer, Robert Szafron, William J. Torres Bobadilla, Yannick Ulrich, Augustin Vestner, Marco Vitti, Jian Wang, Huai-Min Yu, Hantian Zhang, Fabio Monti, Arantxa Ruiz Martínez, Angela Taliercio, Andreas Papaefstathiou, Ludovic Scyboz
Abstract
In this contribution, the higher-order QCD and electroweak corrections to Standard Model Higgs boson pair production via the gluon-fusion mechanism, gg hh, are summarized and the different sources of theoretical uncertainty are assessed. The discussion includes finite top quark mass effects, matching to parton showers, approximate NNLO and N3LO QCD corrections, NLO electroweak effects, and uncertainties associated with the top quark mass scheme and perturbative scale choices. In addition, we provide an updated state-of-the-art recommendation for the inclusive gluon-fusion Higgs boson pair production cross section and the corresponding Higgs boson pair invariant-mass distribution.
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