Quark asymmetries in the proton from a model for parton densities
| dc.creator | Alwall, Johan | |
| dc.creator | Ingelman, Gunnar | |
| dc.date | 2005-03-10 | |
| dc.date | 2005-05-30 | |
| dc.date.accessioned | 2026-07-07T03:54:29Z | |
| dc.date.available | 2026-07-07T03:54:29Z | |
| dc.description | Based on quantum fluctuations in momentum and of the proton into meson-baryon pairs, we develop a physical model for the non-perturbative x-shape of parton density functions in the proton. The model describes the proton structure function and gives a natural explanation of observed quark asymmetries, such as the difference between the anti-up and anti-down sea quark distributions and between the up and down valence distributions. An asymmetry in the momentum distribution of strange and anti-strange quarks in the nucleon is found to reduce the NuTeV anomaly to a level which does not give a significant indication of physics beyond the standard model. | |
| dc.description | 27 pages, 11 figures. Updated with extended discussion | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0503099 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0503099 | |
| dc.identifier | Phys.Rev. D71 (2005) 094015 | |
| dc.identifier | doi:10.1103/PhysRevD.71.094015 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/44259 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Quark asymmetries in the proton from a model for parton densities | |
| dc.type | text |