LIP Lisboa
Higgs Physics at the FCC
by
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Europe/Lisbon
LIP-Lisboa/3-311 - Sala de Seminários (LIP Lisboa)
LIP-Lisboa/3-311 - Sala de Seminários
LIP Lisboa
40
Description
The FCC-ee offers powerful opportunities to determine the Higgs boson parameters, exploiting over 10^6 e+e−→ZH events and almost 10^5 WW→H events at centre-of-mass energies around 240 and 365 GeV. This essay spotlights the important measurements of the ZH production cross section and of the Higgs boson mass. The measurement of the total ZH cross section is an essential input to the absolute determination of the HZZ coupling -- a "standard candle" that can be used by all other measurements, including those made at hadron colliders. The determination of the Higgs boson mass with a precision significantly better than the Higgs boson width (4.1 MeV in the Standard Model) is a prerequisite to either constrain or measure the electron Yukawa coupling via direct e+e−→H production at √s=125 GeV. Approaching the statistical limit of 0.1% and O(1) MeV on the ZH cross section and the Higgs boson mass, respectively, sets highly demanding requirements on accelerator operation, detector design, theoretical calculations, and analysis techniques. The latest results included in the Feasibility Study recently finalized for the European Strategy Symposium will be presented.