Acta Physica Polonica B

Vol. 33, No. 11, November 2002, page 3701

GVMD Model Predictions for the Low Q2 Behaviour of the Spin Structure Function g1(x,Q2) and of the DHGHY Integral I(Q2)

Barbara Badelek, Jan Kwiecinski, Beata Ziaja

Predictions for g1(x,Q2) at low Q2 are obtained in the framework of the GVMD model. Contributions from both light and heavy vector mesons are evaluated. The DHGHY sum rule is employed to fix the magnitude of the light vector meson contribution to g1, using the recent measurements in the region of baryonic resonances. The DHGHY moment function is calculated. Predictions are compared to the data.

PACS numbers: 12.38 Lg

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