Determination of the deep inelastic contribution to the generalised Gerasimov-Drell-Hearn integral for the proton and neutron
Journal Article (Journal Article)
The virtual photon absorption cross section differences [σ1/2 - σ3/2] for the proton and neutron have been determined from measurements of polarised cross section asymmetries in deep inelastic scattering of 27.5 GeV longitudinally polarised positrons from polarised 1H and 3He internal gas targets. The data were collected in the region above the nucleon resonances in the kinematic range v< 23.5 GeV and 0.8 GeV2 < Q2 < 12 GeV2. For the proton the contribution to the generalised Gerasimov-Drell-Hearn integral was found to be substantial and must be included for an accurate determination of the full integral. Furthermore the data are consistent with a QCD next-to-leading order fit based on previous deep inelastic scattering data. Therefore higher twist effects do not appear significant. © 1998 Elsevier Science B.V. All rights reserved.
Full Text
Duke Authors
Cited Authors
- Ackerstaff, K; Airapetian, A; Akopov, N; Akushevich, I; Amarian, M; Aschenauer, EC; Avakian, H; Avakian, R; Avetissian, A; Bains, B; Barrow, S; Baumgarten, C; Beckmann, M; Belostotski, S; Belz, JE; Benisch, T; Bernreuther, S; Bianchi, N; Blanchard, S; Blouw, J; Böttcher, H; Borissov, A; Brack, J; Brauksiepe, S; Braun, B; Bray, B; Brons, S; Brückner, W; Brüll, A; Bruins, EEW; Bulten, HJ; Cadman, R; Capitani, GP; Carter, P; Chumney, P; Cisbani, E; Court, GR; Dal Piaz, PF; Delheij, PPJ; de Sanctis, E; de Schepper, D; Devitsin, E; de Witt Huberts, PKA; di Nezza, P; Düren, M; Dvoredsky, A; Elbakian, G; Ely, J; Emerson, J; Fantoni, A; Fechtchenko, A; Ferstl, M; Fick, D; Fiedler, K; Filippone, BW; Fischer, H; Fortune, HT; Fox, B; Frabetti, S; Franz, J; Frullani, S; Funk, MA; Gagunashvili, ND; Galumian, P; Gao, H; Gärber, Y; Garibaldi, F; Gavrilov, G; Geiger, P; Gharibyan, V; Gyurjyan, V; Golendoukhin, A; Graw, G; Grebeniouk, O; Green, PW; Greeniaus, LG; Grosshauser, C; Guidal, MG; Gute, A; Haas, JP; Haeberli, W; Hansen, JO; Hasch, D; Häusser, O; Heinsius, FH; Henderson, R; Henkes, T; Henoch, M; Hertenberger, R; Holler, Y; Holt, RJ; Hoprich, W; Ihssen, H; Iodice, M; Izotov, A; Jackson, HE; Jgoun, A; Jones, C; Kaiser, R
Published Date
- December 24, 1998
Published In
Volume / Issue
- 444 / 3-4
Start / End Page
- 531 - 538
International Standard Serial Number (ISSN)
- 0370-2693
Digital Object Identifier (DOI)
- 10.1016/S0370-2693(98)01396-3
Citation Source
- Scopus