The approximation method for calculation of the exponents of the gluon distribution, {lambda}{sub g}, and the structure function, {lambda}{sub S},at low x
- Razi University, Physics Department (Iran, Islamic Republic of)
We present a set of formulas using the solution of the QCD Dokshitzer-Gribov-Lipatov-Altarelli-Parisi (DGLAP) evolution equation to extract of the exponents of the gluon distribution, {lambda}{sub g}, and structure function, {lambda}{sub S}, from the Regge-like behavior at low x. The exponents are found to be independent of x and to increase linearly with lnQ{sup 2} and are compared with the most data from the H1 Collaboration. We also calculated the structure function F{sub 2}(x,Q{sup 2}) and the gluon distribution G(x,Q{sup 2}) at low x assuming the Regge-like behavior of the gluon distribution function at this limit and compared them with an NLO-QCD fit to theH1 data, two-Pomeron fit, multipole Pomeron exchange fit, and MRST (A.D. Martin, R.G. Roberts, W.J. Stirling, and R.S. Thorne), DL (A. Donnachie and P.V. Landshoff), and NLO GRV (M. Gluek, E. Reya, and A. Vogt) fit results.
- OSTI ID:
- 21402562
- Journal Information:
- Physics of Atomic Nuclei, Vol. 71, Issue 6; Other Information: DOI: 10.1134/S1063778808060100; Copyright (c) 2008 Pleiades Publishing, Ltd.; ISSN 1063-7788
- Country of Publication:
- United States
- Language:
- English
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