CERN Accelerating science

Article
Report number	arXiv:2407.03015
Title	HHH Whitepaper
Author(s)	Abouabid, Hamza (Abdelmalek Essaadi U.) ; Arhrib, Abdesslam (Abdelmalek Essaadi U.) ; Arnold, Hannah (Stony Brook U.) ; Azevedo, Duarte (KIT, Karlsruhe, TP) ; Brigljevic, Vuko (Boskovic Inst., Zagreb) ; Chen, Maggie (Oxford U., Theor. Phys.) ; Diaz, Daniel (San Diego State U.) ; Duarte, Javier (San Diego State U.) ; du Pree, Tristan (NIKHEF, Amsterdam ; Twente U., Enschede) ; Falaki, Jaouad El (Ibn Zohr U., Agadir) ; Ferencek, Dinko (Boskovic Inst., Zagreb) ; Ferreira, Pedro. M. (Lisbon, ISEL ; Lisbon U., CFTC) ; Fuks, Benjamin (Paris, LPTHE) ; Ganguly, Sanmay (Indian Inst. Tech., Kanpur ; Amity U., Sch. Eng. Tech. ; Tokyo U., ICEPP) ; Karkout, Osama (NIKHEF, Amsterdam ; Twente U., Enschede) ; Kolosova, Marina (Florida U.) ; Konigsberg, Jacobo (Florida U.) ; Landsberg, Greg (Brown U.) ; Liu, Bingxuan (Simon Fraser U. ; Zhongshan U. ; CERN) ; Moser, Brian (CERN) ; Muehlleitner, Margarete (KIT, Karlsruhe, TP) ; Papaefstathiou, Andreas (Lockheed, Marietta) ; Pasechnik, Roman (Lund U. (main)) ; Robens, Tania (Boskovic Inst., Zagreb) ; Santos, Rui (Lisbon, ISEL ; Lisbon U., CFTC) ; Sheldon, Brian (San Diego State U.) ; Soyez, Gregory (IPhT, Saclay) ; Stamenkovic, Marko (Brown U.) ; Stylianou, Panagiotis (DESY) ; Susa, Tatjana (Boskovic Inst., Zagreb) ; Tetlalmatzi-Xolocotzi, Gilberto (Siegen U. ; IJCLab, Orsay) ; Weiglein, Georg (DESY ; Hamburg U., Inst. Theor. Phys. II) ; Zanderighi, Giulia (Garching, Max Planck Inst. ; Munich, Tech. U.) ; Zhang, Rui (Wisconsin U., Madison)
Publication	2024-11-19
Imprint	2024-07-03
Number of pages	117
Note	C23-07-14117 pages, 56 figures; Whitepaper resulting from HHH Workshop in Dubrovnik 2023, https://indico.cern.ch/event/1232581/; v2: small typos corrected
DOI	10.1140/epjc/s10052-024-13376-3 (publication)
Subject category	hep-ph ; Particle Physics - Phenomenology
Abstract	We here report on the progress of the HHH Workshop, that took place in Dubrovnik in July 2023. After the discovery of a particle that complies with the properties of the Higgs boson of the Standard Model, all SM parameters are in principle determined. However, in order to verify or falsify the model, the full form of the potential has to be determined. This includes the measurement of the triple and quartic scalar couplings. We here report on ongoing progress of measurements for multi scalar final states, with an emphasis on three SM-like scalar bosons at 125 GeV, but also mentioning other options. We discuss both experimental progress and challenges as well as theoretical studies and models that can enhance such rates with respect to the SM predictions.
Copyright/License	preprint: (License: CC BY 4.0)

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