The structure functions F2c and FLc in the framework of the kT factorization
A. V. Kotikov, A. V. Lipatov, G. Parente, N. P. Zotov
Abstract
We present the perturbative parts of the structure functions F2c and FLc for a gluon target having nonzero transverse momentum squared at order αs. The results of the double convolution (with respect to the Bjorken variable x and the transverse momentum) of the perturbative part and the unintegrated gluon densities are compared with HERA experimental data for F2c. The contribution from FLc structure function ranges 1030% of that of F2c at the HERA kinematical range.
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