"particle_norm_CosPol" of "Inclusive and differential cross section measurements of single top quark production in association with a Z boson in proton-proton collisions at $\sqrt{s}$ = 13 TeV"

Normalized differential cross sections as a function of the cosine of the top polarization angle, measured in respect to the recoiling jet at particle level.以粒子级反冲喷注为参考基准所测得的、随顶夸克极化角余弦值变化的归一化微分截面。