A rigorous bound on quark distributions in the nucleon
| dc.creator | Di Salvo, E. | |
| dc.date | 2003-11-03 | |
| dc.date.accessioned | 2026-07-07T11:43:27Z | |
| dc.date.available | 2026-07-07T11:43:27Z | |
| dc.description | I deduce an inequality between the helicity and the transversity distribution of a quark in a nucleon, at small energy scales. Then I establish, thanks to the positivity constraint, a rigorous bound on longitudinally polarized valence quark densities, which finds nontrivial applications to d-quarks. This, in turn, implies a bound for the distributions of the longitudinally polarized sea, which is probably not SU(3)-symmetric. Some model predictions and parametrizations of quark distributions are examined in the light of these results. | |
| dc.description | Talk given at the QCD03 Conference, Montpellier, 2-9 July 2003 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0311015 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0311015 | |
| dc.identifier | Nucl.Phys.Proc.Suppl.133:73-76,2004 | |
| dc.identifier | doi:10.1016/j.nuclphysbps.2004.04.140 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/201242 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | A rigorous bound on quark distributions in the nucleon | |
| dc.type | text |