We present a study of the expected precision for the measurement of the top Yukawa
coupling, y_ t yt, in e^+ e^-e+ e-collisions at a center-of-mass energy of 1 TeV. Independent
analyses of t ̄ t H tt¯ H final states containing at least six hadronic jets are performed, based
on detailed simulations of SiD and ILD, the two candidate detector concepts for the ILC. We
estimate that a statistical precision on y_ t yt of 4.5% can be obtained with an integrated
luminosity of 1 ab^-1 ab-1 that is split equally between two configurations for the beam …

We present a study of the expected precision for measurement of the top Yukawa coupling,
yt, in e+ e-collisions at a center-of-mass energy of 1 TeV and assuming a beam polarization
of P (e-, e+)=(-0.8,+ 0.2). Independent analyses of ttH final states containing at least six
hadronic jets are performed, based on detailed simulations of SiD and ILD, the two
candidate detector concepts for the ILC. We estimate that a statistical precision of yt of 4%
can be obtained with an integrated luminosity of 1$\mathrm {ab}^{-1} $.