Analytic Approximation to the GLAP evolution of $F_2(x,Q^2)$ in the small-$x$ region
msra(1997)
摘要
We propose a systematic approximation scheme for solving GLAP evolution
equations at small Bjorken-$x$. The approximate solutions interpolate smoothly
between hard (singular as $x^{-(1+\lambda)}$, $\lambda> 0$) and soft (singular
at most as $x^{-1}$) initial conditions and may be applied in a wide range of
$Q^2$. The small-$x$ behavior of $F_2^p(x,Q^2)$ which is extracted from a fit
to HERA data agrees with results from a global fit.
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关键词
hera data agrees with results from a global fit.,high energy physics,initial condition
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