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We give a new configuration of split fermion positions in one extra dimensionwith two different Yukawa coupling strengths for up-type, $h_u$, and down-type,$h_d$, quarks at $\frac{h_u}{h_d}=36.0$. The new configurations can give enoughCP violating (CPV) phase for accommodating all currently observed CPVprocesses. Therefore, a 5D standard model with split fermions is viable. Inaddition to the standard CKM phase, new CPV sources involving Kaluza-Klein(KK)gauge bosons coupling which arise from the fact that unitary rotation whichtransforms weak eigenstates into their mass eigenstates only holds for the zeromodes which are the SM fields and not for the KK excitations. We have examinedthe physics of kaon, neutron, and $B/D$ mesons and found the most stringentbound on the size $R$ of the extra dimension comes from $|\epsilon_K|$.Moreover, it depends sensitively on the width, $\sigma$, of the Gaussianwavefunction in the extra dimension used to describe of the fermions. When$\sigma/R \ll 1$, the constraint will be lifted due to GIM suppression on theflavor changing neutral current(FCNC) and CPV couplings.Comment: 24 pages, 8 figure

CP violation in 5D Split Fermions Scenario