Unified description of the non-singlet spin dependent structure function g 1 incorporating Altarelli-Parisi evolution and the double logarithmic l n 2 (1/x) effects at low x
Abstract
A unified equation for the non-singlet spin dependent structure function
g
ns
1
(x,
Q
2
)
which incorporates the complete leading order Altarelli-Parisi evolution at finite
x
and double logarithmic
l
n
2
(1/x)
effects at
x→0
is formulated. The solution of this equation reasonably agrees with the recent data obtained by the Spin Muon Collaboration.