Nonlinear Corrections to the Momentum Sum Rule

The importance of the nonlinear corrections on the momentum sum rule is investigated on the initial scale $Q_0^2$. Nonlinear corrections are found to play an indispensable role in the singlet and gluon momentum sum rule in the high-order approximations in the parameterization groups for nucleons and light nuclei at low $x$ in future colliders. In this way, we obtain a significantly different low $x$ behavior of the singlet and gluon momentum sum rule at the hotspot point.