Spin Dependent Structure Function $g_1$ at Low $x$

J. Kwiecinski

Spin Dependent Structure Function $g_1$ at Low $x$

高能物理 - 唯象学 2014-11-17 v1

作者: J. Kwiecinski

摘要

Theoretical expectations concerning small $x$ behaviour of the spin dependent structure function $g_1$ are summarised. This includes discussion of the Regge pole model predictions and of the double $ln^2(1/x)$ effects implied by perturbative QCD. The quantitative implementation of the latter is described within the unified scheme incorporating both Altarelli-Parisi evolution and the double $ln^2(1/x)$ resummation. The double $ln^2(1/x)$ effects are found to be important in the region of $x$ which can possibly be probed at HERA. Predictions for the polarized gluon distribution $\Delta G(x,Q^2)$ at low $x$ are also given.

关键词

proton structure spin chains perturbative qcd evolution

引用

@article{arxiv.hep-ph/9803288,
  title  = {Spin Dependent Structure Function $g_1$ at Low $x$},
  author = {J. Kwiecinski},
  journal= {arXiv preprint arXiv:hep-ph/9803288},
  year   = {2014}
}

备注

Talk given at the Cracow Epiphany Conference on Spin Effects in Particle Physics, 9-11 January 1998, Cracow, Poland

Spin Dependent Structure Function $g_1$ at Low $x$

摘要

关键词

引用

备注

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