Higgs Physics at CLIC

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The Compact Linear Collider (CLIC) is an attractive option for a future multi-TeV linear electron-positron collider, offering the potential for a rich precision physics programme, combined with sensitivity to a wide range of new phenomena. The physics reach of CLIC has been studied in the context of three distinct centre-of-mass energies, √s=350 GeV, 1.4 TeV and 3.0 TeV. This staged scenario provides an excellent environment for precise studies of the properties of the 126 GeV Higgs boson. Operation at √s=350 GeV allows, on the one hand, for a determination of the couplings and width of the Higgs boson in a model-independent manner through the study of the Higgsstrahlung process, and on the other hand, for a study of Higgs bosons produced in W+W- fusion for the most common Higgs decay modes. Operation at higher centre-of-mass energies, √s=1.4 TeV and 3 TeV, provides high statistics W+W- fusion samples allowing for high precision measurements of many Higgs couplings and a study of rare Higgs decay modes, Higgs boson samples produced in ZZ fusion, and the potential to study the top Yukawa coupling as well as the Higgs boson self-coupling. We explore the potential of the CLIC Higgs physics programme based on full simulation studies of a wide range of final states. The evolution of the physics sensitivity as a function of the centre-of-mass energy is presented in terms of combined fits to all measurements and their respective statistical uncertainty.




Sicking, E. (2016). Higgs Physics at CLIC. Nuclear and Particle Physics Proceedings, 273275, 801–806. https://doi.org/10.1016/j.nuclphysbps.2015.09.123

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