The spin content of the proton in the light-cone quark model without SU(3) flavour symmetry
- 1 March 1991
- journal article
- Published by IOP Publishing in Journal of Physics G: Nuclear and Particle Physics
- Vol. 17 (3) , 213-220
- https://doi.org/10.1088/0954-3899/17/3/004
Abstract
The authors argue that it is inappropriate to use SU(3) flavour symmetry in analysing the recent EMC measurement of the proton spin structure function and then present a light-cone, quark-proton model analysis without using SU(3). The nucleon is described as a bound state of three relativistic quarks on the light-cone. The constituent quarks have their own internal structure in terms of valence quarks, a quark-antiquark sea and gluons. The EMC result, taken in conjunction with the Bjorken sum rule, gives, separately, the valence quark and an effective sea contribution to the proton spin, demonstrating explicit cancellation of the valence and sea contributions.Keywords
This publication has 39 references indexed in Scilit:
- An investigation of the spin structure of the proton in deep inelastic scattering of polarised muons on polarised protonsNuclear Physics B, 1989
- Exact determination of the Peierls-Nabarro frequencyPhysical Review B, 1989
- Flavor symmetry, EMC results and the spin content of the protonPhysics Letters B, 1988
- The anomalous gluon contribution to polarized leptoproductionPhysics Letters B, 1988
- Evidence against Perturbative QCD from Polarized Deep-Inelastic ScatteringPhysical Review Letters, 1988
- A crisis in the parton model: where, oh where is the proton's spin?The European Physical Journal C, 1988
- Chiral symmetry and the spin of the protonPhysics Letters B, 1988
- A measurement of the spin asymmetry and determination of the structure function g1 in deep inelastic muon-proton scatteringPhysics Letters B, 1988
- Spin content of the protonPhysical Review Letters, 1988
- The nucleon as a bound state of three quarks and deep inelastic phenomenaNuclear Physics B, 1974