Low-x behavior of spin structure functions: unitarity and nonperturbative hadron structure
Sergey Troshin, Nikolai Tyurin
Abstract
We consider low-x behavior of the spin structure functions g1(x) and h1(x) in the unitarized chiral quark model that combines the ideas on constituent quark structure of hadrons with a geometrical scattering picture and unitarity. A nondiffractive singular low-x dependence of gp1(x) and g1n(x) is obtained and a diffractive type smooth behavior of h1(x) is predicted at small x.
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