The duality between partonic and hadronic descriptions of physical phenomena is one of the
most remarkable features of strong interaction physics. A classic example of this is in …

As the only stable baryon, the nucleon is of crucial importance in particle physics. Since the
nucleon is a building block for all atomic nuclei, there is a need to analyse the its structure in …

▪ Abstract The Gerasimov-Drell-Hearn sum rule is one of several dispersive sum rules that
connect the Compton scattering amplitudes to the inclusive photoproduction cross sections …

Nucleon resonance contributions to the polarized proton g 1 and g 2 structure functions are
computed from resonance electroexcitation amplitudes extracted from CLAS exclusive …

We report on the results of the E06-014 experiment performed at Jefferson Lab in Hall A,
where a precision measurement of the twist-3 matrix element d 2 of the neutron (d 2 n) was …

A phenomenological parametrization of the proton polarized structure function g 1 p (x, Q 2)
is developed for x≳ 0.02 using deep inelastic data up to∼ 50 (GeV/c) 2 as well as available …

A dynamical model [T. Sato and T.-SH Lee, Phys. Rev. C 54, 2660 (1996); 63, 055201
(2001); T. Sato, D. Uno, and T.-SH Lee, ibid. 67, 065201 (2003)] of electroweak pion …

The Gerasimov-Drell-Hearn (GDH) sum rule connects the anomalous contribution to the
magnetic moment of the target nucleus with an energy-weighted integral of the difference of …

We study the phenomenon of parton-hadron duality in both polarized and unpolarized
electron proton scattering using the HERMES and the Jefferson Lab data, respectively. In …

We estimate the twist-4 spin-1 nucleon matrix element f 2 in an instanton-based description
of the QCD vacuum. In addition to the flavor-nonsinglet we compute also the flavor-singlet …