A unified BFKL and GLAP description of $F_2$ data

Details A unified BFKL and GLAP description of $F_2$ data A unified BFKL and GLAP description of $F_2$ data

1997-03-27

arxiv.org/abs/hep-ph/9703445v1

Phys.Rev. D56 (1997) 3991-4006

Physics

High Energy Physics

High Energy Physics - Phenomenology

25 pages, LaTeX, 9 figures

Scientific paper

10.1103/PhysRevD.56.3991

We argue that the use of the universal unintegrated gluon distribution and the $k_T$ (or high energy) factorization theorem provides the natural framework for describing observables at small x. We introduce a coupled pair of evolution equations for the unintegrated gluon distribution and the sea quark distribution which incorporate both the resummed leading $ln (1/x)$ BFKL contributions and the resummed leading $ln (Q^2)$ GLAP contributions. We solve these unified equations in the perturbative QCD domain using simple parametic forms of the nonperturbative part of the integrated distributions. With only two (physically motivated) input parameters we find that this $k_T$ factorization approach gives an excellent description of the measurements of $F_2 (x,Q^2)$ at HERA. In this way the unified evolution equations allow us to determine the gluon and sea quark distributions and, moreover, to see the x domain where the resummed $ln (1/x)$ effects become significant. We use $k_T$ factorization to predict the longitudinal structure function $F_L (x,Q^2)$ and the charm component of $F_2 (x,Q^2)$.

Affiliated with

Also associated with

No associations

Rating

A unified BFKL and GLAP description of $F_2$ data does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A unified BFKL and GLAP description of $F_2$ data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A unified BFKL and GLAP description of $F_2$ data will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-467960