Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1999-07-13
Nucl.Phys. B559 (1999) 378-392
Physics
High Energy Physics
High Energy Physics - Phenomenology
21 pages, Latex, 6 Ps-figures
Scientific paper
10.1016/S0550-3213(99)00461-7
The coefficients of the nonlinear terms in a modified Altarelli-Parisi evolution equation with parton recombination are determined in the leading logarithmic ($Q^2$) approximation. The results are valid in the whole $x$ region and contain the translation $GG\to q\bar q$, which is inhibited in the double leading logarithmic approximation. The comparisons of the new evolution equation with the Gribov-Levin-Ryskin equation are presented.
Ruan Jianhong
Zhu Wei
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