TY  - JOUR
A1  - Ziemons, Karl
T1  - A measurement of the spin asymmetry of the structure function g1 in deep inelastic muon-proton scattering
T2  - Physics Letters B
N2  - The spin asymmetry in deep inelastic scattering of longitudinally polarised muons by longitudinally polarised protons has been measured over a large x range (0.01<x<0.7). The spin-dependent structure function g1(x) for the proton has been determined and its integral over x found to be 0.114±0.012±0.026, in disagreement with the Ellis-Jaffe sum rule. Assuming the validity of the Bjorken sum rule, this result implies a significant negative value for the integral of g1 for the neutron. These values for the integrals of g1 lead to the conclusion that the total quark spin constitutes a rather small fraction of the spin of the nucleon.
Y1  - 1988
UR  - https://opus.bibliothek.fh-aachen.de/opus4/frontdoor/index/index/docId/5028
SN  - 0370-2693
N1  - European Muon Collaboration
VL  - 206
IS  - 2
SP  - 364
EP  - 370
ER  -