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Experimental determination of the evolution of the bjorken integral at low Q

Physical Review Letters, ISSN: 0031-9007, Vol: 93, Issue: 21, Page: 212001
2004
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Article Description

The evolution of the Bjorken integral over the low Q range of 0.17-1.10 GeV was investigated. The Bjorken integral was extracted from inclusive scattering of polarized electrons by polarized protons, deuterons and He, for the region in which integral was dominated by nucleon resonances. The nonsinglet twist-4 matrix element f was also extracted. It was found that that f was small and the total higher twist contribution was compatible with zero.

Bibliographic Details

Gilman, R.; De Vita, R.; Cates, G.; Deur, A.; Minehart, R.; Hughes, E. W.; Bosted, P.; Korsch, W.; Crabb, D.; Garibaldi, F.; Taiuti, M.; Burkert, V.; Skabelin, A. V.; Melnitchouk, W.; Forest, T. A.; Jiang, X.; Yun, J.; Dodge, G. E.; Fatemi, R.; Choi, Seonho; Meziani, Z. -E.; Kuhn, S. E.; de Jager, C. W.; Slifer, K.; Chen, J. -P.

American Physical Society (APS)

Physics and Astronomy

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