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AAC analysis of polarized parton distributions with uncertainties | | M. Hirai
; S. Kumano
; N. Saito
; | | Date: |
3 Aug 2004 | | Subject: | hep-ph hep-ex nucl-ex nucl-th | | Affiliation: | Asymmetry Analysis Collaboration | | Abstract: | We report recent studies of the Asymmetry Analysis Collaboration (AAC) on polarized parton distribution functions (PDFs). Using the data on the spin symmetry A_1 in deep inelastic lepton scattering, we investigate optimum polarized PDFs. Their uncertainties are estimated by the Hessian method. The uncertainties are large for the polarized antiquark and gluon distributions. We discuss the role of accurate SLAC-E155 proton data on the determination of the PDFs. The obtained distributions are compared with other parametrization results. | | Source: | arXiv, hep-ph/0408024 | | Services: | Forum | Review | PDF | Favorites | |
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