  Absolute and normalised differential cross-sections of single top quarks
produced in the $t$-channel are presented. 20.2 fb$^{-1}$ of proton-proton
collision data at a centre-of-mass energy of 8 TeV collected by the ATLAS
experiment at the LHC are used. Differential cross-sections as a function of
the transverse momentum and the absolute value of the rapidity of the top
quarks and the top antiquarks are measured at both parton level and particle
level. The transverse momentum and rapidity differential cross-sections of the
scattered light-quark jets are extracted at particle level. The measured
cross-sections are compared to various Monte Carlo predictions as well as to
available fixed-order QCD calculations. All results agree with the Standard
Model predictions.
