A measurement of the spin asymmetry of the structure function g1 in deep inelastic muon-proton scattering
- 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.
| Author: | Karl Ziemons |
|---|---|
| ISBN: | 0370-2693 |
| Parent Title (English): | Physics Letters B |
| Document Type: | Article |
| Language: | English |
| Year of Completion: | 1988 |
| Date of the Publication (Server): | 2013/01/28 |
| Volume: | 206 |
| Issue: | 2 |
| First Page: | 364 |
| Last Page: | 370 |
| Note: | European Muon Collaboration |
| Link: | http://dx.doi.org/10.1016/0370-2693(88)91523-7 |
| Zugriffsart: | campus |
| Institutes: | FH Aachen / Fachbereich Medizintechnik und Technomathematik |
