Charm content of a proton in collinear parton model and in k_T-factorization approach
classification
✦ hep-ph
keywords
approacht-factorizationdifferencefunctionsmodelpartonprotonc-quark
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It is shown that the difference between the c-quark proton structure functions calculated in the k_T-factorization approach using different unintegrated gluon distribution functions is the same order as the difference between results obtained in the parton model and in the k_T-factorization approach.
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