Recent status of polarized parton distributions

Details Recent status of polarized parton distributions Recent status of polarized parton distributions

2002-11-13

arxiv.org/abs/hep-ph/0211190v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 4 figures, aipproc.cls, aipxfm.sty, fix2col.sty, aip-arlo.clo, aip-6s.clo, aip-8d.clo, aip-8s.clo. Talk given at SPIN

Scientific paper

10.1063/1.1607160

We study an influence of precise data on uncertainty of polarized parton distribution functions. This analysis includes the SLAC-E155 proton target data which are precise measurements. Polarized PDF uncertainties are estimated by using the Hessian matrix. We examine correlation effect between the antiquark and gluon uncertainties. It suggests that reducing the gluon uncertainty is needed to determine the polarized antiquark distribution clearly.

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