Triple Higgs physics at the LHC

by Dr Andreas Papaefstathiou (Kennesaw State University, GA, USA), Carlo Pandini (Centre National de la Recherche Scientifique (FR))

Thursday 22 May 2025, 11:00 → 13:00 Europe/Zurich

4/2-011 - TH common room (CERN)

Abstract: 

Multi-Higgs boson production processes can provide essential insights into the scalar sector of the Standard Model (SM). At lowest order, the production of Higgs boson pairs directly probes the Higgs trilinear self-coupling. Exploring the production of three Higgs bosons is primarily motivated by the unique opportunity it offers to measure the Higgs quartic self-coupling. Although observing triple Higgs production within the SM presents significant experimental challenges at the LHC, due to its exceptionally small cross section, the process becomes potentially observable in scenarios involving extended scalar sectors, or anomalous couplings. In this talk we will review the key theoretical and phenomenological aspects of triple Higgs boson production at hadron colliders, and present the first experimental results coming from the LHC. Finally, we will discuss the prospects for future measurements at the LHC and proposed future collider experiments.

 

Bios: