QCD predictions for event-shape distributions in hadronic Higgs decays

• DOI: 10.1007/jhep06(2022)009
• Publication Date: 2022-06-06T02:02:21Z
• Authors: G. Coloretti; A. Gehrmann-De Ri...; C. T. Preuss
• Keywords: Nuclear and High Energy Physics; 530 Physics; FOS: Physical sciences; 10192 Physics Institute; QC770-798; 01 natural sciences; High Energy Physics - Experiment; High Energy Physics - Phenomenology; High Energy Physics - Experiment (hep-ex); High Energy Physics - Phenomenology (hep-ph); Nuclear and particle physics. Atomic energy. Radioactivity; Jets and Jet Substructure; 0103 physical sciences; Higher-Order Perturbative Calculations; Higher-Order Perturbative Calculations; Jets and Jet Substructure

Abstract We study the six classical event-shape observables in hadronic Higgs decays at next-to-leading order in QCD. To this end, we consider the decay of on-shell Higgs bosons to three partons, taking into account both the Yukawa-induced decay to b-quark pairs and the loop-induced decay to two gluons via an effective Higgs-gluon coupling. The results are discussed with a particular focus on the discriminative power of event shapes regarding these two classes of processes.