Constraint on $Δg(x)$ at large $x$

Details Constraint on $Δg(x)$ at large $x$ Constraint on $Δg(x)$ at large $x$

2006-07-06

arxiv.org/abs/hep-ph/0607063v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4page, 3 eps figures, to appear in the proceedings of DIS 2006, April 20-24, 2006, Tsukuba, Japan

Scientific paper

We investigate the polarized gluon distribution \Delta g(x) by a global
analysis of current DIS data and the \pi^0 data from RHIC-Spin experiments. The
\pi^0 data provide a strong constraint on \Delta g(x), so that its uncertainty
is reduced. Furthermore, new DIS data of COMPASS and HERMES play an important
role in determining \Delta g(x) at large x.

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