CERN Accelerating science

Article
Report number arXiv:2004.03505 ; CERN-TH-2020-052
Title Measuring the Higgs self-coupling via Higgs-pair production at a 100 TeV p-p collider
Author(s) Mangano, Michelangelo L. (CERN) ; Ortona, Giacomo (INFN, Turin) ; Selvaggi, Michele (CERN)
Publication 2020-11-08
Imprint 02 Apr 2020
Number of pages 35
In: Eur. Phys. J. C 80 (2020) 1030
DOI 10.1140/epjc/s10052-020-08595-3
Subject category Particle Physics - Theory ; hep-ex ; Particle Physics - Experiment ; hep-ph ; Particle Physics - Phenomenology
Abstract Higgs pair production provides a unique handle for measuring the strength of the Higgs self interaction and constraining the shape of the Higgs potential. Among the proposed future facilities, a circular 100 TeV proton-proton collider would provide the most precise measurement of this crucial quantity. In this work, we perform a detailed analysis of the most promising decay channels and derive the expected sensitivity of their combination, assuming an integrated luminosity of 30ab−1. Depending on the assumed systematic uncertainties, we observe that the Higgs self-coupling will be measured with a precision in the range 2.9 - 5.5% at 68% confidence level.
Copyright/License preprint: (License: arXiv nonexclusive-distrib 1.0)
publication: © The Author(s) 2020 (License: CC-BY-4.0), sponsored by SCOAP³



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