Probing light quark Yukawa couplings at the lepton collider

We propose to utilize angularity distributions in Higgs boson decay to probe light quark Yukawa couplings at lepton colliders. Using soft-collinear effective theory (SCET), we present a prediction of angularity distributions from Higgs decaying to quark and gluon states at NNLL accuracy. We show that the angularity distributions could be used to constrain the light quark Yukawa couplings.