Fully Differential Higgs Pair Production in Association With a $Z$ Boson at Next-to-Next-to-Leading Order in QCD

Hai Tao Li, 2, ∗ Chong Sheng Li, 4, † and Jian Wang ‡ 1 Los Alamos National Laboratory, Theoretical Division, Los Alamos, NM 87545, USA ARC Centre of Excellence for Particle Physics at the Terascale, School of Physics and Astronomy, Monash University, Victoria, 3800 Australia 3 Department of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China Center for High Energy Physics, Peking University, Beijing 100871, China Physik Department T31, Technische Universität München, James-Franck-Straße 1, D–85748 Garching, Germany