ar X iv : h ep - p h / 04 11 19 1 v 1 1 5 N ov 2 00 4 POLARIZED STRUCTURE FUNCTIONS AND THE GDH INTEGRAL FROM LATTICE QCD
نویسنده
چکیده
The Gerasimov-Drell-Hearn integral I GDH (Q 2), and its relation to polarized nu-cleon structure functions, is discussed from the lattice perspective. Of particular interest is the variation of I GDH (Q 2) with Q 2 , and what it may teach us about the origin and magnitude of higher-twist contributions.
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