Spin-Dependent Coupled Altarelli-Parisi Equations in the NLO and the Method of Successive Approximations

Table 1

Values of Δ∑(𝑄²) and Δ𝐺(𝑄²) obtained from this work in NLO after four iterations at 𝑄²=10GeV².

	1st iter.	2nd iter.	3rd iter.	4th iter.	Exp. values
Δ∑ (𝑄^2)	0.348	0.427	0.646	0.631	0.35±0.06
					(COMPASS at 𝑄^2=3GeV^2)
					0.33±0.04
					(HERMES at 𝑄^2=5GeV^2)
Δ𝐺(𝑄^2)	0.134	0.342	0.458	0.535	0.29±0.32
					(From all fits of present data)