Full simulation study of the top Yukawa coupling at the ILC at √s=1 TeV

Abstract

We present a study of the expected precision for the measurement of the top Yukawa coupling, y t, in e + e - collisions at a center-of-mass energy of 1 TeV. Independent analyses of (Formula presented.) 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 (Formula presented.) of 4.5 % can be obtained with an integrated luminosity of (Formula presented.) that is split equally between two configurations for the beam polarization (Formula presented.), (Formula presented.) and (Formula presented.). This estimate improves to 4% if the 1 (Formula presented.)sample is assumed to be fully in the (Formula presented.) configuration.