Physics Motivation: measure Higgs Yukawa coupling to muons, which provides useful test for ratio of Yukawa coupling between 2nd/3rd generation leptons (with Htautau); between 2nd generation lepton/quark (with Hcc).
Search Channel: e+e- → ZH, Z→qq/nunu, H→mu mu, Ecm=500 GeV.
Detector Benchmark: very sensitive to high momentum resolution/tracking efficiency, algorithm for isolated lepton tagging.
final observable: Branching ratio of H→ mu mu.
intermediate observables: track momentum resolutions.
Shin-ichi Kawada (DESY)
Shin-ichi Kawada, Jenny List, Mikael Berggren, "Branching ratio measurement of h->mu+mu- at the ILC" (LCWS2017 proceedings) [LINK]