  Higher collision energies at future colliders may eventually lead to the
falsification of standard fixed-order perturbation theory and linear evolutions
due to non-linear structure of QCD at small-x. New physics researches that is
strictly based on accurate jet measurements will undoubtedly have this
observation known as BFKL effect via angular jet decorrelations taking into
account the Mueller-Navelet jets. As one of the frontier colliders, FCC-ep, has
a great observation potential on parton densities through asymmetrical
collisions. We aim to test the observability of azimuthal angular jet
decorrelations with the recent event generators (HERWIG, PYTHIA) at the
particle level for FCC-ep centre of mass energies 3.5 TeV in proton-electron
collisions. Jets are reconstructed by the Anti-kT algorithm (R = 0.5), with
$p_{T} > 35 GeV$ and selected in the range of |y|<6. Relevant rapidity regions
has been analyzed with the azimuthal-angle difference between Mueller-Navelet
Jets (${\Delta}{\Phi}$) in the rapidity seperation (${\Delta}y $) and the
distributions of cosn(${\pi}-{\Delta}{\Phi}$) are presented in comparison as
the result.
