Constraint on Δg(x) at large x
M. Hirai, S. Kumano, N. Saito
Abstract
We investigate the polarized gluon distribution Δg(x) by a global analysis of current DIS data and the π0 data from RHIC-Spin experiments. The π0 data provide a strong constraint on Δg(x), so that its uncertainty is reduced. Furthermore, new DIS data of COMPASS and HERMES play an important role in determining Δg(x) at large x.
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