Proton spin structure and intrinsic motion of the constituents
| dc.creator | Zavada, Petr | |
| dc.date | 2004-08-17 | |
| dc.date.accessioned | 2026-07-07T03:53:09Z | |
| dc.date.available | 2026-07-07T03:53:09Z | |
| dc.description | The spin structure of the system of quasifree fermions having total angular momentum $J=1/2$ is studied in a consistently covariant approach. Within this model the relations between the spin functions are obtained. Their particular cases are the sum rules Wanzura - Wilczek, Efremov - Leader - Teryaev, Burkhardt - Cottingham and also the expression for the Wanzura - Wilczek twist 2 term $g_{2}^{WW}$. With the use of the proton valence quark distributions as an input, the corresponding spin functions are obtained. The resulting structure functions $g_{1}$ and $g_{2}$ are well compatible with the experimental data. Comparison with the basic formulas following from the standard quark-parton model reveals the importance of the quark intrinsic motion inside the target for the correct evaluation of the spin structure functions. | |
| dc.description | 6 pages, 1 figure, contribution to the DIS2004 conference | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0408182 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0408182 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/43729 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Proton spin structure and intrinsic motion of the constituents | |
| dc.type | text |