文章基本信息

标题：Lattice QCD close to the light cone with applications to meson structure functions
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作者：D. GRUENEWALD
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2008
卷号：2008
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We report on work in progress in which we calculate the gluon structure function of a color dipole in near light cone SU(2) lattice QCD. The color dipole is represented by a high (nearly infinite) momentum q ¯ q state added to the vacuum. We use as vacuum state a variational ground state of the near light cone Hamiltonian. We compute the color dipole matrix element of two transverse gluon momentum operators separated along the light cone, the Fourier transform of which is the gluon structure function. We identify three different contributions which, for large light cone momentum, reproduce the Pomeron behavior of the structure function with unit intercept.