Measurement of the Q2-evolution of the Bjorken integral at low Q2
arXiv:nucl-ex/0411056 · doi:10.1142/9789812701909_0127
Abstract
We report on the extraction of the Q2-dependence of the Bjorken sum between 0.16 < Q2 < 1.1 GeV2. A twist analysis performed on these data shows that the higher twist corrections are small due to a cancellation between the twist-4 and 6 terms. The extraction of an effective strong coupling constant is discussed.
Contribution to the proceedings of the 16th International Spin Physics Symposium, spin2004 (Trieste)