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Collider Cross Talk
Triple Higgs physics at the LHC
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Europe/Zurich
4/2-011 - TH common room (CERN)
Description
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:
Andreas Papaefstathiou earned his PhD in theoretical particle physics from the University of Cambridge, working under the supervision of Bryan Webber. Following his PhD, he held postdoctoral positions at the University of Zürich, CERN, Nikhef in Amsterdam, and the University of Edinburgh. He joined Kennesaw State University in 2021, where he is currently an Assistant Professor. He is currently one of the convenes of the LHC Higgs WG4 - DiHiggs and MultiHiggs.
Carlo Pandini earned his PhD working on the ATLAS experiment at the LPNHE laboratory in Paris. He held postdoctoral positions at the University of Geneva, CERN, and Nikhef, contributing to the FASER experiment, di-Higgs searches in the bbττ final state, and triple Higgs searches in the 6b final state. He currently holds a chair de professeur junior at the Laboratoire de Physique Subatomique et de Cosmologie (LPSC) in Grenoble.
