Prospects for Higgs physics at energies up to 100 TeV

TL;DR

This paper evaluates the potential of future 100 TeV proton colliders for Higgs physics, detailing production mechanisms, cross sections, and sensitivity to new Higgs states in Standard Model and beyond scenarios.

Contribution

It provides comprehensive cross section calculations and sensitivity analyses for Higgs production at energies up to 100 TeV, including beyond Standard Model Higgs states and dark matter interactions.

Findings

Cross sections increase significantly at higher energies.

Future colliders can probe heavier Higgs states beyond LHC reach.

Enhanced sensitivity to new physics scenarios at 100 TeV.

Abstract

We summarise the prospects for Higgs boson physics at future proton-proton colliders with centre of mass (c.m.) energies up to 100 TeV. We first provide the production cross sections for the Higgs boson of the Standard Model from 13 TeV to 100 TeV, in the main production mechanisms and in subleading but important ones such as double Higgs production, triple production and associated production with two gauge bosons or with a single top quark. We then discuss the production of Higgs particles in beyond the Standard Model scenarios, starting with the one in the continuum of a pair of scalar, fermionic and vector dark matter particles in Higgs-portal models in various channels with virtual Higgs exchange. The cross sections for the production of the heavier CP-even and CP-odd neutral Higgs states and the charged Higgs states in two-Higgs doublet models, with a specific study of the case of the Minimal Supersymmetric Standard Model, are then given. The sensitivity of a 100 TeV proton machine to probe the new Higgs states is discussed and compared to that of the LHC with a c.m. energy of 14 TeV and at high luminosity.