Measurement of the spin-structure function g 2 and the semi-inclusive double-spin asymmetries at HERMES |
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| Authors: | V. A. Korotkov |
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| Affiliation: | 1. Institute for High Energy Physics, Protvino, 142281, Russia
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| Abstract: | A measurement of the virtual-photon asymmetry A 2 and of the spin-structure function g 2 of the proton are presented for the kinematic range of the HERMES experiment carried out at the HERA electron storage ring at DESY. Semi-inclusive longitudinal double-spin asymmetries provide new insight into the valence quark helicity distributions Δu v and Δd v. |
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