Calculation of Gluon Distribution Functions in Leading Order by Regge-like Behavior at Low- x

An approximate analytical form of the gluon distribution function from the derivative F 2 proton structure function data at low- x assuming the Regge-like behavior of the gluon distribution function at this limit is presented. In this method, we calculate λ and C parameters for each low- x value at several Q 2 values using the scaling violation of the F 2 proton structure function. For low- x , λ is found to be independent of x within the experimental accuracy. We make use of the leading order Altarelli–Parisi (A–P) evolution equations in our analysis. To test the validity of our new determined gluon distribution functions, we compare them with the QCD parton distribution functions at low- x region.