Experimental constraints on coefficients of $α_S$-expansion of Gottfried sum rule
| dc.creator | Sidorov, A. V. | |
| dc.creator | Tokarev, M. V. | |
| dc.date | 1996-08-28 | |
| dc.date.accessioned | 2026-07-07T03:59:52Z | |
| dc.date.available | 2026-07-07T03:59:52Z | |
| dc.description | The $x$- and $Q^2$-dependences of the Gottfried sum rule $S_G(x,Q^2)$ based on the experimental data on proton and deuteron structure functions are studied. The dependence of $S_G(x,Q^2)$ on $Q^2$ for low $x$ points to flavour asymmetry of sea quark distributions. For the first time, the coefficients $c_1, c_2$ of the expansion of $S_G(x,Q^2)$ in $α_S/π$ up to second order are evaluated through the phenomenological analysis of NMC and H1 data. It is found that $c_1$ is negative while $c_2$ is positive. The obtained result is in disagreement with QCD predictions for these coefficients. We suggest measuring the low $x$-dependence of the $F_2^D$ deuteron structure function at HERA in order to study the $Q^2$-dependence of the Gottfried sum rule. | |
| dc.description | 10 pages, latex, 7 figures | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9608461 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9608461 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/46405 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Experimental constraints on coefficients of $α_S$-expansion of Gottfried sum rule | |
| dc.type | text |