The leptonic future of the Higgs
(2017) Journal of High Energy Physics — Vol. 09, n° 9, p. 14 (2017)
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- Authors
Wang, Kechen 
- Abstract
- Precision study of electroweak symmetry breaking strongly motivates the construction of a lepton collider with center-of-mass energy of at least 240 GeV. Besides Higgsstrahlung (e$^{+}$ e$^{−}$ → hZ), such a collider would measure weak boson pair production (e$^{+}$ e$^{−}$ → WW) with an astonishing precision. The weak-boson-fusion production process ( $ {e}^{+}{e}^{-}\to \nu \overline{\nu}h $ ) provides an increasingly powerful handle at higher center-of-mass energies. High energies also benefit the associated top-Higgs production ( $ {e}^{+}{e}^{-}\to t\overline{t}h $ ) that is crucial to constrain directly the top Yukawa coupling. The impact and complementarity of differential measurements, at different center-of-mass energies and for several beam polarization configurations, are studied in a global effective-field-theory framework. We define a global determinant parameter (GDP) which characterizes the overall strengthening of constraints independently of the choice of operator basis. The reach of the CEPC, CLIC, FCC-ee, and ILC designs is assessed.
- Affiliations
Citations
Durieux, G., Grojean, C., Gu, J., & Wang, K. (2017). The leptonic future of the Higgs. Journal of High Energy Physics, 09(9), 14. https://doi.org/10.1007/JHEP09(2017)014 (Original work published 2017)