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Short description.

Measurement of Higgs coupling to heavy quarks (Higgs decay to gluons is mediated by heavy quark loops.) 

These studies were previously done focused on sqrt(s)=250 GeV with ZH and Z→ll.
For this study at 500 GeV, the study should at least be done with nu-nu-H (WW-fusion and ZH) which is a clean experimental benchmark.
(For physics the ZH channel with Z→qq  would also be worth studying as it is likely the most powerful for physics and
at 500 GeV benefits from the relatively unambiguous jet pairing).

Main observables.

ΔBR(H→bbar, ccbar, gg)/BR from Δ(σ*BR)/(σ*BR) and Δσ/σ measurements.

Control variables.

b-tag, c-tag, JER, M_H


Masakazu Kurata, Ryo Yonamine


H. Ono, A. Miyamoto, "Evaluation of measurement accuracies of the Higgs boson branching fractions in the International Linear Collider",

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