Jul 6 – 13, 2022
Bologna, Italy
Europe/Rome timezone

Higgs Self Couplings Measurements at Future proton-proton Colliders

Jul 8, 2022, 7:05 PM
1h 25m
Bologna, Italy

Bologna, Italy

Palazzo della Cultura e dei Congressi
Poster Higgs Physics Poster Session


Claudio Caputo (UCLouvain)


The Higgs boson trilinear and quartic self-couplings are directly related to the shape of the Higgs potential; measuring them with precision is extremely important, as they provide invaluable information on the electroweak symmetry breaking and the electroweak phase transition. In this paper, we perform a detailed analysis of double Higgs boson production, through the gluon gluon fusion process, in the most promising decay channels di-bottom-quark di-photons, di-bottom-quark di-tau, and four-bottom-quark for several future colliders: the HL-LHC at 14 TeV and the FCC-hh at 100 TeV, assuming respectively 3 inverse ab and 30 inverse ab of integrated luminosity. In the HL LHC scenario, we expect an upper limit on the di Higgs cross section production of 0.76 at 95% confidence level, corresponding to a significance of 2.8 sigma. In the FCC-hh scenario, depending on the assumed detector performance and systematic uncertainties, we expect that the Higgs self-coupling will be measured with a precision in the range 4.8-8.5% at 95% confidence level.

In-person participation Yes

Primary author

Claudio Caputo (UCLouvain)


Angela Taliercio (UCLouvain) Nicola De Filippis (BA) Paola Mastrapasqua (Istituto Nazionale di Fisica Nucleare) Pietro Vischia (Universidad de Oviedo) Pushpalatha Bath (Fermilab)

Presentation materials