Work

Quark-Hadron Duality in Neutron ( He3 ) Spin Structure

Year: 2008
Type: article
Abstract: We present experimental results of the first high-precision test of quark-hadron duality in the spin-structure function ${g}_{1}$ of the neutron and $^{3}\mathrm{He}$ using a polarized $^{3}\mathrm{He}$ target in the four-momentum-transfer-squared range from 0.7 to $4.0\text{ }\text{ }(\mathrm{GeV}/c{)}^{2}$. Global duality is observed for the spin-structure function ${g}_{1}$ down to at least ${Q}^{2}=1.8\text{ }\text{ }(\mathrm{GeV}/c{)}^{2}$ in both targets. We have also formed the photon-nucleon asymmetry ${A}_{1}$ in the resonance region for $^{3}\mathrm{He}$ and found no strong ${Q}^{2}$ dependence above $2.2\text{ }\text{ }(\mathrm{GeV}/c{)}^{2}$.
Language: Latvian
Open Access status: bronze
OpenAlex ID: W2257153489
FWCI: 1.411
Cites: 36
Cited by: 26
Related to: 10