The virtual photon-proton asymmetry A_2 and the spin dependent structure function x g_2 at HERMES

Vladislav Korotkov
2010 Proceedings of XVIII International Workshop on Deep-Inelastic Scattering and Related Subjects — PoS(DIS 2010)   unpublished
The HERMES experiment at DESY collected data on deep-inelastic scattering of 27.6 GeV longitudinally polarized leptons off transversely polarized hydrogen gas target internal to the HERA storage ring. The data were used to measure the proton spin structure function g p 2 (x, Q 2 ) and the virtual photon asymmetry A p 2 (x, Q 2 ) over the kinematic range 0.023 < x < 0.7 and 1 < Q 2 < 15 GeV 2 . The results are consistent, within experimental uncertainties, with expectations based on the
more » ... sed on the Wandzura-Wilczek relation and with previous experimental data.
doi:10.22323/1.106.0234 fatcat:nnzj2w6ixnebtipcmml6yxaqna