Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2004-04-07
Phys.Lett.B613:148-153,2005
Physics
High Energy Physics
High Energy Physics - Phenomenology
11 pages, 2 figures, minor changes following referees comments
Scientific paper
10.1016/j.j.physletb.2005.03.046
Color polarizabilities of the neutron are extracted from data on the lowest moment of the spin-dependent $g_1$ structure function. New data in the resonance region from Jefferson Lab at $Q^2 \alt 1$ GeV$^2$, in combination with world data at higher $Q^2$, allow a systematic determination of the $1/Q^2$ corrections, and provide the first constraints on $1/Q^4$ corrections. The results suggest that higher-twist effects in the neutron are small, and that quark-hadron duality may be approximately valid, even down to $Q^2 \sim 1$ GeV$^2$.
Averett Todd
Cates G.
Chen Jen-Ping
Choi Seonho
de Jager C. W.
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